thuat ngu vien thong
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Thut ng vin thng
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THUT NG VIN THNG
A-AH
AA Abreviated Addressing
nh a ch vit tt AA Absolute (access) address
a ch truy nhp tuyt i AALU Arithmetic and Logical Unit
n v s hc v logic AAMPS Advanced Mobile Phone System
H thng in thoi di ng tin tin AAR Automatic Alternate Routing
nh tuyn thay th t ng AARE
A-associate-response
p ng lin kt A AARQ A-associate-request
yu cu lin kt A AAS Adaptive Antenna
Anten p ng AAS Automatic Addressing System
H thng nh a ch t ng AAV Alternate Access Vendors
Cc hng truy nhp thay th ABDS Adaptive break-in Differential Sensitivity (Series G)
nhy chnh lch ngt thch ng ABM Asynchronous Balanced Mode (HDLC)
Ch cn bng khng ng b ABR Answer Bid Ratio (Series Q)
H s lnh tr li
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ABR Available Bit Rate (ATM)
Tc bit kh dng ABRT A-abort (Series X)
Khi d liu giao thc ng dng a-abort AC Access Control (Token Ring, FDDI)
iu khin truy nhp ACA PPU Alter Context Acknowledge PPDU
PPDU bo nhn ng cnh thay th ACB Access Barred Signal (Series Q)
Tn hiu chn truy nhp ACC Austrian CCITT Committee
y ban CCITT nc o ACC Automatic Congestion Control
iu khin tc nghn t ng ACCH Associated Control Channel
Knh iu khin gn lin ACD Automatic Call Distribution
Phn b cuc gi t ng ACE Automatic Cross-connection Equipment (also known as AXE)
Thit b kt ni cho t ng (cn gi l AXE) ACF Advanced Communications Function
Chc nng truyn thng cao cp ACITS Advisory Committee on
Information Technology Standardisation (SOG-IT)
y ban t vn v tiu chun ha cng ngh thng tin ACK Acknowledge(ment) (Series Q,T)
Bo nhn ACM Address Complete Message (Series Q)
Tin bo a ch hon chnh ACPM Association Control Protocol Machine
C ch giao thc iu khin kt hp ACPPU Alter Context PPDU (Series X)
PPDU ca vn cnh bin i ACSE Association Control Service Element (Series T)
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Mi trng dch v iu khin kt hp ACTE Approvals Committee for Terminal Equipment
Hi ng ph chun thit b u cui ACTOM Advisory Committee on Technical and Operational Matters
(of Inmarsat)
y ban t vn v cc vn k thut v khai thc ACTS Advisory Committee on
Information Technology Standardisation (SOG-IT)
y ban t vn v tiu chun ha cng ngh thng tin ACU Acknowledgement Signal Unit (Series Q)
Khi tn hiu bo nhn ADC Address Complete Signal Charge (Series Q)
Thc hin a ch hon chnh tnh cc ADC Analog-to-Digital Converter (Series P)
B chuyn i tng t s ADCCP Advanced Data Communications Control Procedures (ANSI)
Cc th tc iu khin truyn s liu tin tin (ANSI) ADI Address Incomplete Signal (Series Q)
Tn hiu a ch khng hon chnh ADM Adaptive Delta Modulation
iu ch Delta thch ng ADM Assynchronous Disconnected Mode
Ch ngt kt ni ng b ADMD Administration Management Domain (Series F, X)
Min qun l hnh chnh ADN Address Complete Signal, No charge (Series Q)
Tn hiu a ch hon chnh khng tnh cc ADP Answer Detection Pattern (Series V)
M hnh pht hin ngi tr li ADPCM Adaptive Differential Pulse Code Modulation
iu xung m (PCM) vi sai thch ng ADPFH Average of Daily Peak Full Hour (Series E)
Trung bnh ca gi cao im hon ton trong ngy ADPH Average Daily Peak Hour (Series E)
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Gi cao im trung bnh trong ngy ADSL Asymmetric Digital Subscriber Line
ng dy thu bao s khng i xng ADU Antennuation Distortion Unit (Series P)
n v mo do sung hao ADX Address Complete Signal, Coin Box (Series Q)
Tn hiu a ch hon chnh, hp b tin AE Application Entity (Series Q, X)
Thc th ng dng AE Associated Equipments (Series F)
Cc thit b lin kt AECMA Association Europenne des Constructeurs de Matriel
Aerospatial
(European Association for the Construction
of Aero-Space Equipment)
Hip hi chu u v thit k thit b hng khng v tr (ting Php)
AEE Asociacin Electrotcnica (Electrotechnical Association)
Hip hi k thut in t AEF Address Extension Facility (Series X)
Phng tin m rng a ch AEF Address Extension Field (Series I)
Trng m rng a ch AENOR Asociacin Espanla de Normalization (Standard Association,
Spain)
Hip hi tiu chun ca Ty Ban Nha AERM Alighnment Error Rate Monitor (Series Q)
B gim st h thng s li ng chnh AES Aircraft Earth Station (Series Q)
Trm mt t hng khng AF Address field (Series I, X)
Trng a ch AFC Address-complete signal, Subscriber-Free Charge (Series Q)
Tn hiu a ch hon chnh thu bao t do, c tnh cc AFI Authority and Format Identifier (Series I, Q, X)
Phn t nhn dng thm quyn v khun dng
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AFN Address-Complete Signal, Subscriber-Free, No Charge (Series Q)
Tn hiu a ch hon chnh thu bao t do, khng tnh cc AFNOR Association Francaice de Normalizacin
(Standard Association, France)
Hip hi tiu chun ca Php AFUTT Association Francaie des Utilisateurs du Telesphone
et des Tlcommunications
(French Telegraphs and Telephone Users Association)
Hip hi nhng ngi s dng bo - thoi ca Php AFX Address-complete signal, Subscriber-free charge, Coin box
(Series Q)
Tn hiu a ch hon chnh, thu bao t do, hp b tin AGF Additional Global Functions (Series I)
Cc chc nng ton cu ph tr AHLF Additional Higher Layer Function (Series I)
Chc nng lp cao ph tr
AI-AX
Ai Action indicator (Series Q)
B ch th hnh vi AI Artificial Intelligence
Tr tu nhn to AIN Advanced Intelligent Network
Mng thng minh cao cp AIS Alarm Indication Signal
Tn hiu ch th cnh bo AITS Acknowledged Information Transfer Service (ITU - T)
Dch v chuyn ti thng tin c bo nhn (ITU - T) AK Data Acknowledgement TPDU (Series X)
TPDU bo nhn d liu AK TPDU Data Acknowledgement (Series X)
Bo nhn d liu
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AL Local Acknowledgement Time (Series X)
Thi gian bo nhn cc b ALE Approval Liaison Engineer (UK)
K s thng tin lin lc c ph chun (Anh) ALLF Additional Low Layer Function (Series I)
Chc nng lp thp ph tr ALP Abstract Local Primitive (Series X)
Nguyn gc cc b tru tng AM Amplitude Modulation
iu ch bin , iu bin AMI Alternate Mark Inversion (Series O)
o du lun phin AMPS Advanced Mobile Phone System
H thng in thoi di ng tin tin AMVFT Amplitude-modulated Voice-frequency Telegraph (Series R)
in bo tn s thoi iu bin ANC Answer signal, Charge (Series Q)
Tn hiu tr li, c tnh cc ANI Automatic Number Identification (ISDN)
Nhn dng s gi t ng ANN Answer Signal, No Charge (Series Q)
Tn hiu tr li, khng tnh cc ANR Automatic Network Routing
nh tuyn mng t ng ANSI American National Standards Institute
Vin tiu chun quc gia Hoa K ANU Answer Signal, Unqualifield (Series Q)
Tn hiu tr li, v iu kin AOC Advice of Charge (Series I)
Thit b tnh cc AP Access Point (UPT)
im truy nhp (UPT) AP Application Program
Chng trnh ng dng
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APB Active Position Backward (Series T)
Ngc tr li v tr tch cc APC Adaptive dictive Coding (Series E, Q)
M ha bo trc thch ng APCI Application-Protocol-Control-Information (Series X)
Thng tin iu khin giao thc ng dng APD Active Position Down (Series T, X)
Pha di v tr tch cc APDU Application Protocol Data Unit
Khi d liu giao thc ng dng APF Active Positon Forward (Series T)
Pha trc v tr tch cc APH Active Postion Home (Series T)
Thng tr v tr tch cc APL Average Picture Level (Series N)
Mc nh trung bnh APL Analogue Private Line
ng dy ring analog APP Applications Portability Profile
c trng di chuyn c ca cc ng dng APR Active Position Return (Series T, X)
Quay v v tr tch cc APS Automatic Protection Switching
Chuyn mch bo v t ng APT Telephony Applications System
H thng cc chng trnh ng dng in thoi APU Active Position Up (Series T)
Pha trn v tr tch cc AR Remote Acknowledge Time (Series X)
Thi gian bo nhn t xa ARA Access Registration Point (UPT)
im ng k truy nhp ARF Alternative routing from (Series E)
nh tuyn thay th t
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ARM Asynchronous Response Mode (HDLC)
Phng thc p ng khng ng b,
ch tr li khng ng b (HDLC) ARP PPDU Abnormal Release Provider PPDU (Series X)
PPDU nh cung ng gii ta bt thng ARQ Automatic Repeat Request (Series T)
Yu cu lp li t ng ARQ Automatic Request Repetition
Lp li yu cu t ng ARR Automatic Rerouting (Series E)
Ti nh tuyn t ng ART Alternative Routing To (Series E)
nh tuyn thay th ti... ART Autorit de Rgulation des Tlcommunications
(French Approval Authority)
C quan quyn lc iu hnh vin thng Php ARU PPDU Abnormal Release User PPDU (Series X)
PPDU ngi dng gii tr bt thng AS Assessment Services
Cc dch v nh mc/cc dch v nh gi ASCII American Standard Code for Information Interchange
M tiu chun M dng trao i thng tin ASD Adverse State Detector (Series V)
B pht hin trng thi bt li (ngc) ASE Application-Service Element (Series Q)
Mi trng dch v ng dng ASIC Application Specific Integrated Circuit
Mch t hp c ng dng c bit ASN.1 Abstract Syntax Notation One (Series Q, T, X)
Ch gii c php tru tng s 1 ASP Abstract Service Primitive (Series X)
Nguyn gc dch v tru tng ASP Advanced Speech Processor
B x l ting ni tin tin
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ASP Assignment Source Point (Series Q)
im ngun phn nh ASR Answer Seizure ratio (Series E)
T l chim pha tr li ASVD Analogue Simultaneous Voice and Data
Ting ni v s liu m phng analog ATC Additional Trunk Capacity (Series E)
Dung lng trung k b sung ATDM Asynchronous Time Division Multiplexing
Ghp knh chia thi gian khng ng b ATIC Time Assignment With Sample Interpolation (Series G)
Gn thi gian vi ni suy mu ATM Asynchronous Transfer Mode
Phng thc chuyn ti khng ng b ATME Automatic Transmission Measuring and Signalling Testing
Equipment (Series M, Q)
Thit b th bo hiu v o truyn dn bo hiu ATME Automatic Transmission Measuring Equipment (Series M)
Thit b o th truyn dn t ng ATRA Austrian Telecommunications Regulation Authority
C quan iu hnh vin thng ca o ATS Air Traffic Services (Series Q)
Cc dch v vn chuyn hng khng ATSC Australian Telecommunications Standardisation Committee
y ban tiu chun ha c AU Access Unit (Series F, Q, T, X)
Khi truy nhp AU Administrative Unit (Series G)
Khi qun l hnh chnh AU PTR Administrative Unit Pointer (Series G)
Khi qun l hnh chnh AUC Authenticication Centre
Trung tm chng thc AUI Attachment Unit Interface
Giao din vi khi gn sn
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AUP Aceptable Use Policy
Chnh sch s dng chp nhn c AVA Attribute Value Assertion (Series X)
Gn gi tr thuc tnh AVK Audio/Video Kernel
Li m thanh/Video AVL Automatic Vehicle Location
nh v xe c t ng AVM Audio Visual Management
Qun l bng nghe nhn AWG American Wire Gause
C dy tiu chun M, tiu chun dy dn M AXE Automatic Cross-Connection Equipment (also known as ACE)
Thit b kt ni cho t ng (cn c gi l ACE)
B
B-CDMA Broaband Code Division Multiple Access
a truy nhp phn chia theo m bng rng, CDMA bng rng
B-ICI Broaband Intercarrier Interface (ATM)
Giao din gia cc nh khai thc bng rng B-ISDN Broadband ISDN
ISDN bng rng B-LE Broadband Loacal Exchange (B-ISDN)
Tng i ni ht bng rng (B-ISDN) B-TA Broadband Terminal Adapter (B-ISDN)
B thch ng u cui bng rng (B-ISDN) B-TE Broaband Terminal Equipment (B-ISDN)
Thit b u cui bng rng (B-ISDN) BA Block Address (Series H)
a ch khi BA Balanced Asynchronous (HDLC)
Khng ng b cn bng (HDLC)
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BABT British Approvals Board for Telecommunications
Hi ng ph chun vin thng Anh Quc BAC Balanced Asynchronous Class (Series V)
Lp khng ng b cn bng BAC Block Acknowledged Counter (Series Q)
B m c bo nhn theo khi BAC Buffer Address Counting
Tnh cc a ch m BACE Basic Automatic Checkout Equipment
Thit b kim tra t ng c bn BACK Bus Acknowledge
Bo nhn, theo Bus BACP Bandwidth Allocation Control Protocol (PPP, ISDN)
Giao thc Iu khin phn phi di thng (PPP, ISDN) BACT Advisory Committee On Telecommunications
For Small Businesses (UK)
y ban t vn v vin thng cho cc doanh nghip nh (Anh Quc)
BAE Beacon Antenna Equipment
Thit b anten ca pha v tuyn BAI Bus Address Incresement Inhibit
Cm tng a ch Bus BAIC Barring of All Incoming Calls
Chn tt c cc cuc gi n BAID Boolean Array Identifier
B nhn dng bng Bool BAKOM Bundesamt fur Post und Telekommunikation
(Federal Office for Communication - Switzerland)
Vn phng Bu chnh Vin thng Thy S BAL Balance
S cn bng BAL Basic Assembler Language
Hp ng c s, ngn ng Assembler c s
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BALUN Balancing Unit
Khi cn bng BAM Basic Access Method
Phng php truy nhp c bn BAN Bionics Adaptive Network
Mng thch ng phng sinh hc BAOC Barring of All Outgoing Calls
Chn tt c cc cuc gi n BAP Bandwidth Allocation Protocol
Giao thc phn phi di thng BAPT Bundesamt fur Post und Telekommunikation
(Federal Office for Post and Telecommunication - Germany)
C quan Lin bang v Bu chnh v Vin thng ca c BAR Buffer Address Register
B ghi a ch m BAS Bit Rate Allocation Signal (Series G, H)
Tn hiu gn theo tc bit BASIC Beginners All-purpose Symbolic Instruction Code
M lnh theo k hiu vn nng dng cho ngi mi lp trnh
BASN Block-Acknowledged Sequence Number (Series Q)
S chui c bo nhn theo khi BBA Bus-to-Bus Access
Truy nhp gia cc Bus BBC Back-to-Back Connection
Kt ni lng vi lng (my) BBC British Broadcasting Corporation
Tp on pht thanh truyn hnh Anh BBC Broadband Bearer Capability
Kh nng mng bng rng BBR Blocked By Reception Of The Bloking Signal (Series Q)
B chn do thu c tn hiu chn BBS Bloked By Sending The Blocking Signal (Series Q)
B chn do gi i tn hiu chn
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BC Bearer Capability (Series Q, T, V)
Kh nng mng, dung lng mng BC Buffer Control (Series H)
iu khin b m BCC Basic Connection Components (Series I)
Cc cu kin kt ni c bn BCC Blocked-Completed Counter (Series Q)
m cc khi hon chnh BCCH Broadcast Control Channel
Knh iu khin pht qung b BCD Binary Coded Decimal (ATM)
S thp phn m ha nh phn BCLB Broadband Connectionless Bearer Service (ATM)
Dch v mng phi lin kt bng rng (trong ATM) BCOB Broadband Connection-Oriented Bearer Service (ATM)
Dch v mang nh hng ni kt bng rng BCSN Bloked-Completed Sequence Number (Series Q)
S chui ca cc khi hon chnh BCUG Bilateral Closed User Group (Series Q)
Nhm khch hng khp kn song phng BCUGOA Bilateral Closed User Group With Outgoing Access (Series
Q)
Nhm khch hng khp kn song phng vi truy nhp gi ra
BDT Telecommunication Development Beareau of the ITU
Vn phng pht trin vin thng ca ITU BER (T) Bit Error Rate (Test)
H s li khi bt (trong o th) BHCA Busy Hour Call Attemps
Cc cuc gi th gi cao im BHLF Basic High Layer Function
Chc nng lp cao c bn BHLI Broaband High Layer Information
Thng tin lp cao bng rng
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Bi Signalling 1D Assigned By Exchange B
Bo hiu 1D do knh B gn BIB Backward Indicator Bit (Series Q)
Bt ca b ch th hng ngc BIC Bearer Identification Code (Series X)
M nhn dng vt mang BIP Bit Interleaved Parity (Series G)
Ngang bng chn l xen bt BIPT Belgian Institute for Posts and Telecommunications
Hc vin Bu chnh Vin thng ca B BISUP Broadband ISDN Users Part
Phn ngi s dng ISDN bng rng BLER(T) Block Error Rate (Test)
H s li khi bt (o th) BMPT Bundesministerium fur Post und Telekommunikation
(Federal
Ministry for Posts and Telecommunications, Germany)
B Bu chnh Vin thng ton lin bang (c) BNS Broadband Network Service
Dch v mng bng rng BNT Groupe Belge des Normes de Tlcommunications or
Belgium Telecommunications Standards group
Nhm tiu chun ha vin thng ca B BOM Beginning of Message
Bt u bn tin BORSCHT Battery feed Overvoltage Protection, Ringing Superision
Hybrid and Testing Coding/Decoding BPDU Bridge Protocol Data Node (ATM)
BPH Break Permitted Here (Series T)
Cho php ngt ti y BPP Bridge Port Pair (ATM)
Cp cng cu BPSK Binary Phase-Shift Keying (Series Q)
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Kha dch pha nh phn BRC Background Revision Control (Series H)
iu khin duyt li nn BRI Basic Rate Interface (ISDN)
Giao din tc c bn (ISDN) BRITE Basic Rate Interface Transmission Equipment
Thit b truyn dn ca giao din tc c bn BRLU Broadband Remote Line Unit
Khi ng dy u xa bng rng BS Bearer Services
Dch v mang BS Base Station
Trm gc BSC Base Station Controller
B iu khin trm gc BSGL Branch System General Licence (UK)
Giy php ph thng cho cc h thng c quan (Anh) BSI British Standards Institute
Vin tiu chun Anh Quc BSI Bit Sequence Independence (Series H)
Tnh c lp chui bt BSIC Base Transceiver Station Identity Code
M nhn dng trm thu pht gc BSM Backward Set-up Message (Series Q)
Tin bo thit lp hng nghch BSN Backward Sequence Number (Series Q)
S chui hng nghch BSNR Backward Sequence Number Received (Series Q)
S chui hng nghch c thu BSNT Backward Sequence Number Of Next SU to be transmitted
(Series Q)
S chui hng nghch ca SU k sau cn c pht BSS Basic Synchronised Subset
H thng ph c bn c ng b ha
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BSS Broadband Switching System
H thng chuyn mch bng rng BSS Base Station System
H thng trm gc BSS Broadcasting-Satellite Service
Dch v v tinh qung b BSSMAP Base Station Systems Management Application Part
Phn ng dng qun l cc h thng trm gc BSU Bearer Switchover Unit (Series R)
Khi chuyn giao vt mang BT Burst Tolerance (ATM)
Dung sai bc pht, bng n (ATM) BT Business Telecommunications (as used by ETSI) or British
Telecom
Vin thng doanh nghip (m ETSI hay dng)
hoc Vin thng Anh Quc BT Bridge Taps (Series G)
Cc nhnh bc cu BTNR British Telecom Network Requirement
Yu cu mng ca vin thng Anh Quc BTR British Telecom Requirement
Yu cu ca Vin thng Anh BTS Base Transceiver Station
Trm thu pht gc BUC Background Update Control (Series H)
iu khin vic cp nht nn BUS Broadcast and Unknown Server
Server qung b v khng c bit BW Bandwidth
Di thng, rng di
C-CD
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C Conditional/Consumer (Series T)
iu kin/Tiu th C/N Carrier To Noise Ratio
H s sng mang trn tp m C/R Command/Response Bit (Series Q, V)
Bt lnh/p ng CA Cerification Authority (Series X)
Thm quyn xc nhn CA Contractual Agreement (Series F, X)
Tha thun theo hp ng CAA Civil Aviation Authority
C quan hng khng dn dng CAAA Computer-Aided Automatic Assembly
T ng lp t bng my tnh CABS Carrier Access Billing System
H thng tnh cc truy nhp nh khai thc CAC Connection Admission Control (ATM)
iu khin nhp kt ni, cho kt ni (ATM) CACA Computer-Aided Circuit Analysis
Phn tch mch nh my tnh CAD Computer Aided Design
Thit k bng my tnh CAD/CAM Computer/Aided Design/Computer-Aided Manufacture
Thit k bng my tnh/Sn xut c tr gip ca my tnh CAE Computer-Aided Engineering
Thit k k thut bng my tnh CAI Common Air Interface
Giao din v tuyn chung CAI Charge Advice Information (Series Q)
Thng bo ca thit b tnh cc CAM Call Accepted Message (Series X)
Tin bo chp nhn cuc gi CAMA Centralized Automatic Message Accounting
Tin bo tnh cc t ng tp trung ha
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CAMEL Customised Applications for Mobile Network Enhanced Logic
Mch logic cao cp ca nhng ng dng
theo yu cu khch hng mng di ng CAN Cancel (Series T)
Hy b CANELEC Comit Europen de Normalisation Electrotechnique
(European Electrotechnical Standards Commitee)
y ban tiu chun ha k thut in chu u CAP CAMEL Application Protocol
Giao thc ng dng CAMEL CAP Carrierless Amplitude/Phase Modulation
iu bin/Pha khng c sng mang CAPI Common ISDN API
API ca mng ISDN thng dng CARS Community Antenna Relay Service
Dch v chuyn tip theo anten cng ng CAS Channel Associated Signalling
Bo hiu i theo knh CAS Cordless Access Service
Dch v truy nhp khng dy CASE Common Application Service Elements (Series T)
Cc mi trng dch v ng dng chung CATV Cable Television also Community Antennae Television
Truyn hnh cp, cn gi l truyn hnh anten cng ng CAU Controlled Access Unit (Token Ring)
Thit b truy nhp c iu khin CAV Component Analog Video
Video Analog hp thnh CB Citizens Band
Bng tn nghip d CB1-3 Clear-back Signal No.1-No-3 (Series Q)
Tn hiu xa sau No.1, No.3 CBA Changeback Acknowledgement Signal (Series Q)
Tn hiu xa ngc
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CBD Changeback Declaration Signal (Series Q)
Tn hiu khai bo i ngc CBDS Connectionless Broadband Data Service (ETSI)
Dch v d liu bng rng phi lin kt (ETSI) CBK Clear-Back Signal (Series Q)
Tn hiu xa ngc CBNV Code Bit Number Variation (Series T)
Bin phn ca s bt m CBO Continuous Bit Stream Oriented (Series I)
nh hng lung bt lin tc CBR Constant Bit Rate (ATM)
Tc bt khng i (ATM) CBS Common Base Station
Trm gc chung CBX Computerised Branch Exchange
Tng i nhnh c my tnh ha CC Call Connected (Series X)
Cuc gi c kt ni CC Calling Channel (Series X)
Knh ch gi CC Call Control (Series Q)
iu khin cuc gi CC Character Code (Series T)
M k CC Clearing Cause (Series T)
Nguyn nhn xa CC Connection Confirm (Series X)
Ph chun kt ni CC Continuity-Check (Series Q)
Kim tra tnh lin tc CC Country Code (Series E, Q, X)
M quc gia, m nc CC Call Control Agent (Series Q)
Nhn vin iu khin cuc gi
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CC TPDU Connection Confirm TPDU (Series X)
TPDU ph chun kt ni CCA CANELEC Certification Agreement
Tha thun cp chng ch CANELEC CCA Character Content Architecture (Series T)
Kin trc ni dung k t CCBS Completion Of Calls to Busy Subscriber
Hon tt th tc cc cuc gi ti mt thu bao bn CCC CANELEC Electronic Components Certification
Chng ch cc thit b in t CANELEC CCC Clear Channel Capability
Kh nng ca knh xa CCCH Common Control Channel
Knh iu khin chung CCF Call Control Function
Chc nng iu khin cuc gi CCF Continuity-Failure Signal (Series Q)
Tn hiu s c lin tc CCH Connections per Circuit per Hour
S kt ni ca mt mch trong mt gi CCH Continuity-Check Indicator (Series Q)
Phn t ch th kim tra lin tc CCH Control Channel (Series Q)
Knh iu khin CCI Continuity-Check Incoming (Series Q)
Kim tra lin tc i ti CCIR Comit Consultatif International des Radiocommunications
(Consultative Committee on International Radiocommunications) International body
y ban t vn v thng tin v tuyn quc t (C quan quc t) CCITT Comit Consultatif International Tlgraphique et Tlphonique
(Consultative Committee on International Telegraphy and Telephony) International body
y ban t vn v in bo in thoi quc t (C quan quc t)
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CCL Calling Party Clear Signal (Series Q)
Tn hiu xa ca pha ch gi CCM Circuit Supervision Message (Series Q)
Tin bo gim st mch CCO Continuity-Check Outgoing (Series Q)
Tn hiu kim tra lin tc gi i CCP Call Confirmation Protocol (Series X)
Giao thc tun th cuc gi CCR Commitment Concurency And Recovery (Series X)
S xung t v s phc hi cam kt CCR Continuity-Check-Request Signal (Series Q)
Tn hiu yu cu kim tra tnh lin tc CCR Currn Cell Rate (ATM)
T l t bo hin thi CCS Common Channel Signaling
Bo hiu knh chung CCSN Common Channel Signalling Network (Series I, X)
Mng bo hiu knh chung CCSS Common Channel Signalling Systems (Series M)
Cc h thng bo hiu knh chung CCT Telephone Circuit (Series Q)
Mch in thoi CD Call Deflection
i hng cuc gi CD Collision Detection (LAN)
Pht hin xung t i u (mng LAN) CD Compact Disk
a Compact, a cng CD-ROM Compact Disk-Read Only Memory
a Compact, B nh ch c CDC Control Data Corporation
Hip hi d liu iu khin CDC Command Document Continue (Series T, U)
Tip tc vn bn lnh
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CDCL Command Document Capability List (Series T)
Danh mc kh nng vn bn lnh CDD Command Document Discard (Series T)
Hy b vn bn lnh CDE Command Document End (Series T)
Kt thc vn bn lnh CDF Cutoff Decrease Factor
Yu t (h s) gim rt cuc gi CDI Called Line Identity (Series X)
Danh tnh ng dy b gi CDLI Called Line Identity (Series E, Q)
Danh tnh ng dy b gi CDMA Code Division Multiple Access
a truy nhp phn chia theo m CDPB Command Document Page Boundary (Series T)
Ti ng b vn bn lnh CDPD Cellular Digital Packet Data
D liu gi s ha ca mng t bo CDR Command Document Resynchronize (Series T)
Ti ng b vn bn lnh CDS Command Document Start (Series T, U)
Khi ng vn bn lnh CDT Credit (Series X)
Tn nhim CDUI Command Document User Information (Series T)
Thng tin khch hng ca vn bn lnh CDV Cell Delay Variation
Bin i thi gian tr t bo
CE-CM
CE Connection Element (Series I)
Mi trng kt ni CEB Comit Electrotechnique Belge
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(Electrotechnical Committee, Belgium)
u ban k thut in t ca B CEC Commision of the European Commuty (ies)
y ban ca (cc) Hi ng chu u CED Called Station Identification (Series T)
Nhn dng trm b gi CEI Comitato Eletrotecnico Italiano (Electrotechnical Committee,
Italy)
u ban k thut in t ca Italia CEI Connection Endpoint Identifier (Series Q)
Phn t nhn dng im cui kt ni CEN Comit Europen de Normalisation Electrotechnique
(European Standards Committee)
y ban tiu chun ha chu u CEPT Confrence des Administrations Europennes
des Postes et Tlecomunications (European Conference of Posts and Telecommunications Administrations)
Hi ngh cc t chc bu chnh vin thng chu u CER Cell Error Ratio (ATM)
H s li t bo, h s li CES Circuit Emulation Service (ATM)
Dch v m phng mch CES Coast Earth Station (Series E, M, U)
Trm mt t duyn hi CES Connection Endpoint Suffix (Series Q)
Hu t im cui kt ni CESA Coast Earth Station Assignment (Series Q)
Phn phi trm mt t duyn hi CESDL Coast Station Low Speed Data (Series Q)
S liu tc thp ca trm mt t duyn hi CESI Centro Eletrotecnico Sperimentale Italiano (Italy)
Trung tm thc nghim k thut in t (Italia) CESI Coast Earth Station Interstation (Series Q)
Lin trm ca cc trm mt t duyn hi
-
CEST Coast Earth Station Telex (Series Q)
Telex ca trm mt t duyn hi CET Centro de Estudos des Telecomunicaes (Portugal)
Trung tm o to vin thng ca B o Nha CF Conversion Facility (Series F, S, T)
Phng tin bin i CFB Call Forward Busy
Cuc gi chuyn tip ang bn CFL Call-Failure Signal (Series Q)
Tn hiu bo hng cuc gi CFNR Call Forward No Reply
Cuc gi chuyn tip khng tr li CFP Formated Processable Content Architecture Levels (Series T)
nh dng cc mc kin trc c th x l c CFR Confirmation To Receive (Series T)
Khng nh thu CFU Call Forwarding Unconditional (Series I, Q)
Chuyn tip cuc gi v iu kin CG Charactor Generator
B to k t CGC Circuit Group Congestion (Series E, Q)
Tc nghn nhm mch CGC Circuit Group Control (Series Q)
iu khin nhm mch CGM Computer Graphics Metalfile (Series T)
Meta tp (siu tp) ha my tnh CGRR Circuit Reset Receipt (Series Q)
Nhn dng nhm mch ti xc lp CGRS Circuit Group Control (Series Q)
Gi nhm mch ti xc lp CGSSA Cellular Geographic Service Area
Vng dch v mng t bo theo a l CHAR Character (Series T)
K t
-
CHG Charging Message (Series Q)
Bn tin tnh cc CHM Changeover And Changeback Messages (Series Q)
Cc thng bo chuyn qua, chuyn li CI Cell Identity
Danh tnh t bo c trng , xc nhn CI Command Identifier (Series T)
Phn t nhn dng lnh CI Caoncatenation Indication (Series G)
Ch th s trng khp CIC Carrier Identification Code
M nhn dng nh khai thc CICS Customer Information Control System
H thng iu khin thng tin khch hng CID Caller Identification
Nhn dng my ch gi CIF Common Intermediate Format
Khun dng trung gian chung CIF Cell In Flight
Cc ang sn tm CIG Calling Subscriber Identification (Series T)
Nhn dng thu bao ch gi CIGRE International Conference On Large High Voltage Electric
Systems (Series K)
Hi ngh quc t v cc h thng in in p rt cao CIGREF Club Informatique des Grandes Enterpries Francaises
Cu lc b tin hc ca cc x nghip ln nc Php CIL Call Identification Line (Series T)
ng dy nhn dng cuc gi CILE Call Information Logging Equipment
Thit b ghi chp thng tin cuc gi CIMAP/CC Circuit Installation and Maintenance Asstance Package/Control
Center
H tr lp t v bo dng mch trn gi/Trung tm iu khin
CIMAP/SSC Circuit Installation and Maintenance Assitance Package/Special
-
Service Center
H tr lp t v bo dng mch trn gi/Trung tm dch v c bit
CIP Carrier Identification Parameter
Thng s nhn dng hng cung CIR Calling-Line-Identity-Request (Series Q)
Yu cu danh tnh ng dy ch gi CISPR International Specila Committee On Radio Interferece (Series G,
K)
y ban quc t c bit v can nhiu v tuyn CIX Commercial Internet Exchange
Tng i Internet thng mi CK Check Bits (Series Q)
Cc bt kim tra CL Connectionless Service (ATM)
Dch v khng kt ni CL Cursor left
Dch con tr sang tri CL Control Channel Of The Line System (Series G)
Knh iu khin (ca h thng ng dy) CL-1 Congestion Level 1 (Series E)
Mc tc nghn 1 CLASS Custom Local Area Signalling Services
Cc dch v bo hiu khu vc mua hng CLCD Clear Confirmation Delay (Series X)
Thi gian tr khng nh xa CLF Clear-Forward Signal (Series Q)
Tn hiu xa hng thun CLI Calling Line Identity/ Identification
Nhn dng/nhn dng ng dy ch gi CLI Command Length Indicator (Series T)
Phn t ch th di lnh CLID Calling Line Identification (ISDN, CLASS)
Nhn dng ng dy ch gi (ISDN, CLASS) CLIP Calling Line Identity sentation
Trnh by nhn dng ng dy ch gi
-
CLIR Calling Line Identitication Restriction
Hn ch nhn dng ng dy ch gi CLNP Connectionless Network Protocol (ISO, ITU-T)
Giao thc mng khng kt ni (ISO, ITU-T) CLNS Connectionless Network Service (ISO, ITU-T)
Dch v mng khng kt ni (ISO, ITU-T) CLONES Command Language On-line Entry System
H thng nhp trc tuyn ngn ng chung CLP Cell Loss Priority
u tin mt (t bo) CLR Cell Loss Ratio
H s mt /T l mt CLR Circuit Louness Rating (Series G)
nh mc vang ca mch CLRD Clear Request Delay (Series X)
Tr yu cu xa CLTS Connectionless-mode Transport Service
Dch v chuyn ti ch khng kt ni CM Conditional Mandatory Parameter (Series T)
Tham s lnh c iu kin CMB CRC Message Block (SeriesG)
Khi tin bo CRC CMC CUG Management Center (Series Q)
Trung tm qun l CUG CMDS Centralized Message Data System
H thng d bo s liu thng bo tp trung ha CMIP Common Management Information Protocol
Giao thc thng tin qun l chung CMIS Common Management Information Service
Dch v thng tin iu hnh chung CML Cellular Mobile Radio
V tuyn di ng t bo CMR Cell Misinsertion Rate (ATM)
T l t bo khng gn ni
-
CMR Common Mode Rejection
T chi phng thc chung CMRR Common Mode Rejection Ratio
H s t chi phng thc chung CMRS Cellular Mobile Radiotelephone Service
Dch v in thoi v tuyn di ng mng t bo
CN-CY
CNAE Customer Network Access Equipment
Thit b truy nhp mng khch hng CNET Centre National dEtudes des Tlcommunications
(National Study Centre for Telecommunications, France)
Trung tm nghin cu quc gia v vin thng ca Php CNM Customer Network Management
Qun l mng khch hng CNP Connection-Not-Possible Signal (Series Q)
Tn hiu khng th kt ni CNR Complex Node Representation (ATM)
Trnh by nt phc hp CNS Complementary Network Service
Dch v mng ph CNS Connection-Not-Successful Signal (Series Q)
Tn hiu kt ni khng thnh cng CO Centrel Office
Tng i trung tm COA Changeover Acknowledgement Signal (Series Q)
Tn hiu bo nhn i chiu CoC Certificate of Conformance
Chng ch tun th COD Connection Oriented Data (ATM)
D liu nh hng kt ni CODLS Connection-Mode Data Link Service (Series X)
Dch v lin kt d liu ch lin kt
-
COF Confusion Signal (Series Q)
Tn hiu nhm ln COLP Connected Line Identification sentation
Trnh by nhn dng ng dy kt ni COLR Connected Line Identification Restriction
Hn ch nhn dng ng dy kt ni COM Continuation Of Message
Phn t ko di ca bn tin COMSAT Communications Satellite Corporation
Cng ty v tinh thng tin CONF Conference Calling (Series I)
Gi kiu hi ngh CONS Connection-Mode Network Service (Series X)
Dch v mng ch lin kt COO Changeover Order Signal (Series Q)
Tn hiu lnh i chiu COP Code of Practice
M tha hnh COR Confirmation Of Receipt (Series X)
Chp nhn (khng nh) thu COSINE Coporation for Open Systems Interconnection Networking in
Europe
Hp tc v t chc mng lin kt cc h thng m chu u COST European Coperation in the field of Scientific
and Technical Research)
Hp tc chu u trong lnh vc nghin cu khoa hc v k thut COT Class Of Traffic (Series U, X)
Lp lu lng COT Continuity Signal (Series Q)
Tn hiu tip din COTC Class-Of-Traffic-Check (Series U)
Lp kim tra lu lng COV Changeover Signal (Series Q)
Tn hiu i chiu CP Call Progress (Series T, X)
-
Tin trnh cuc gi CP Processable Content Architecture Levels (Series T)
Cc lp cu trc ni dung c th x l CP PPDU Connect sentation PPDU (Series X)
PPDU trnh by kt ni CPA PPDU Connect sentation Accept PPDU (Series X)
PPDU ca khi chp nhn trnh din kt ni CPAF Customer mise Access Facility
Phng tin truy nhp nh ring thu bao CPC Call Processing Control (Series Q)
iu khin x l cuc gi CPCS Common Part Convergence Sublayer (ATN)
Lp con hi t ca phn chung CPCSSDU Common Part Convergence Sublayer - Service Data Unit (ATM)
Lp con hi t ca phn chung - Khi d liu dch v CPE Customer mise Equipment
Thit b thuc nh ring thu bao CPN Calling Party Number (ATM)
S gi ca pha ch gi CPR PPDU Connect sentation Reject PPDU (Series X)
PPDU t chi trnh by kt ni CPS1 Candidate Protocol Siute No.1 (Series G)
B giao thc ng c CPT Compatibility Tests (Series Q)
Cc php o th tnh tng thch CPU Central Processing Unit
Khi x l trung tm CR Carriage Return (Series T, X)
Quay li u dng CR Connection Request (Series X)
Yu cu kt ni CR TPDU Connection Request TPDU (Series X)
TPDU yu cu kt ni CRA Call Routing Apparatus
Thit b nh tuyn cuc gi
-
CRAFT Cooperative Research Action for Technology
Hot ng hp tc nghin cu v cng ngh CRAG Cellular Advisory Group
Nhm c vn v tuyn t bo CRC Cyclic Redundancy Check (Serie G, O, Q, V)
Kim tra d tha chu k CRED Credit Card Calling (Series I)
Gi bng th tn dng CRF Corrected Reference Equivalent (Series G, P)
Tng ng chun c hiu chnh CRF Cell Relay Function (ATM)
Chc nng chuyn tip CRF Connection Related Functions (Series I)
Cc chc nng lin quan n kt ni CRI Continuity-Recheck Incoming (Series Q)
Ti kim tra tnh lin tc gi n CRL Coded Run Lengths (Series T)
Cc khong chy c m ha CRN Checkpoint Reference Number (Series T)
S chun ca im kim tra CRO Continuity-Recheck Outgoing (Series Q)
Ti kim tra tnh lin tc gi ra CRP Call Request Packet (Series E)
Gi yu cu cuc gi CRP Command Repeat (Series T)
Lp li lnh CRS Cell Relay Service (ATM)
Dch v chuyn tip CRS Circuit Reset (Series Q)
Ti xc lp mch CRT Cathode Ray Tube
ng tia m lc CS Circuit Switch (Series I, X)
Chuyn mch knh
-
CS Clear Screen (Series T, X)
Mn sch, mn sng CS Convergence Sublayer (ATM)
Lp con hi t CSA Carrier Serving Area
Vng phc v ca nh khai thc CSA Command Session Abort (Series T)
Hy phin lnh CSC Circuit Supervision Control (Series Q)
iu khin gim st mch CSC Control Signalling Code (Series R, U, X)
M bo hiu iu khin CSCC Command Session Change Control (Series T)
iu khin thay i phin lnh CSDN Circuit Switched Data Networks (Series U)
Cc mng s liu chuyn mch knh CSE CAMEL Service Environment
Mi trng dch v CAMEL CSE Command Session End (Series T)
Kt thc phin lnh CSELT Centro Studi e Laboratori Telecommunicazioni or Centre
for Telecommunications Research and Testing (Italy)
Trung tm nghin cu v th nghim vin thng (Italia) CSI Called Subscriber Identification (Series T)
Nhn dng thu bao b gi CSI Control Sequence Introducer (Series T)
B nhp iu khin CSM Call Set-up Message (Series Q)
Tin bo thit lp cuc gi CSM Call Supervsion Message (Series Q)
Tin bo gim st cuc gi CSMA Carrier Sense Multiple Access (Series G)
a truy nhp phn bit cng ty CSMA-CD Carrier Sense Multiple Access with Collision Detection
a truy nhp phn bit cng ty c pht hin xung t
-
CSMA/CA Carrier Sense Multiple Access with Collision Avoidance (LAN)
a truy nhp phn bit cng ty c trnh xung t CSPDN Circuit Switched Public Data Network
Mng s liu cng cng chuyn mch knh CSRE Corrected Send Reference Equivalent (Series G, Q)
ng lng chun pha gi c hiu chun CSS Command Session Start (Series T)
Khi ng phin lnh CSS Connection-Successful Signal (Series Q)
Tn hiu kt ni thnh cng CSSN Circuit State Sequence Number (Series Q)
S chui trng thi mch CSTA Computer Supported Telephony Application
ng dng in thoi c s h tr ca my tnh CSU Channel Service Unit (ATM)
Khi dch v knh CSUI Command Session User Information (Series Q)
Thng tin ngi dng phin lnh CSV Circuit Switched Voice
in thoi chuyn mch knh CT Cordless Telephone
in thoi khng dy CT Call Transfer
Chuyn cuc gi CT Conformance Test (ATM)
Th nghim tnh ph hp CT (International) Transit Centre (Series M, Q)
Trung tm qu giang (quc t) CT-1 European Analogue Cordlles Telephone System
H thng in thoi khng dy analog ca chu u CT-2 Second generation cordless telephone, Digital
in thoi khng dy th h th 2, k thut s CTC Continue To Correct (Series T)
Tip tc hiu chnh
-
CTCR Complaint-To-Completion Ratio (Series E)
H s than phin/hon ho CTD Cell Transfer Delay
Tr chuyn ti CTD Cell Transfer Delay (ATM)
Tr chuyn ti CTD Commulative Transit Delay (Series X)
Tr qu tch ly CTE Channel Translation Equipment
Thit b dch knh CTI Computer Telephony Integration
Kt hp in thoi - my tnh CTIA Cellualar Telecommunications Industry Association
Hip hi cng nghip thng tin mng t bo CTN Corporate Telecommunications Network
Mng vin thng cng ty/ni b CTR Common Technical Regulation
Quy ch k thut chung CTR Response For Continue To Correct (Series T)
Tr li vic tip tc hiu chnh CTS Conformance Testing Services
Cc dch v th nghim tnh ph hp CUG Closed User Group
Nhm thu bao khp kn CUG/OA Closed User Group With Outgoing Access (Series X)
Nhm thu bao khp kn vi truy nhp cuc gi i CW Call Waiting
Ch gi CYTA Cyprus Telecommunications Agency
Hng vin thng Sp
D-DK
D/A Digital-to-Analogue
Digital - analog, bin i s/tng t chuyn i D/A
-
D/I Drop And Insert
R v xen (R/Xen) DA Destination Address (LAN)
a ch ch (LAN), a ch ni n DA Device Address (SNA)
a ch thit b (SNA) DA Demand Assignment (Series M, Q)
Gn cu DA Digital Access (Series M)
Truy nhp s DA Distribution Amplifier
B khuch i phn b DAA Data Access Arrangement
C ch truy nhp s liu DAB Digital Audio Broadcasting
Pht thanh qung s DAC Digital To Analog Converter (Series Q)
B bin i s - tng t DACS Digital Access Cross Connect Service
Dch v kt ni cho truy nhp s DAEDR Delimitation, Alighnment, Error Detection (Transmitting) (Series
Q)
Pht hin ranh gii, ng chnh v li (pht) DAI Digital Audi Interface (104 kbit/s)
Giao din m thanh s (104 kbit/s) DAL Direct Access Line
ng dy truy nhp trc tip DANAK Dansk Akkreditering or National Danish Accreditation Scheme
H thng cp chng ch quc gia ca an Mch DAP Directory Access Protocol (Series X)
Giao thc truy nhp th mc DAS Dual Attachment Station (FDDI)
Trm ghp i DASD Direct Access Storage Device
Thit b lu tr truy nhp trc tip
-
DASS Digital Access Signalling System
H thng bo hiu truy nhp s DATAM Document Architecture Transfer And Manupulation Class (Series
T)
Chuyn giao v iu khin cu trc vn bn DAU Data Adapter Unit
Khi thch ng s liu DB Document Bulk Transfer Class (Series T)
Chuyn giao khi vn bn DBM Document Bulk Transfer and Manipulation Class (Series T)
Lp chuyn giao v iu khin khi vn bn DC Direct Current
Dng mt chiu DC Disconnect Confirm (Series X)
Khng nh ngt kt ni DC TPDU Disconnect Confirm TPDU (Series X)
TPDU khng nh ngt kt ni DC1 Device Control One (Series T)
iu khin thit b No.1 DCC Data Communication Channel
Knh thng tin s liu DCC Data Country Code (Series F, X)
M quc gia ca s liu DCCH Dedicated Control Channel
Knh iu khin dnh ring DCE Data Circuit-Terminating Equipment
Thit b kt cui knh s liu DCE Data Communications Equipment
Thit b thng tin s liu DCE Distributed Computing Enviroment
Mi trng tnh ton phn tn DCF Data Count Field
Trng tnh ton s liu DCF Data Comunications Function Block (TMN)
Khi chc nng thng tin s liu
-
DCM Digital Circuit Multiplication (Series I)
Nhn mch s DCME Digital Circuit Multiplication Equipment (Series E, F, P, Q)
Thit b nhn mch s DCMG DCME Gain (Series G)
li ca DCME DCMS Digital Circuit Multiplication Systems (Series G)
Cc h thng nhn mch s DCN Data Comunications Network
Mng thng tin s liu DCN Disconnect (Series T)
Ngt kt ni DCP Digital Communications Protocol
Giao thc truyn thng s DCP Data Coordinating Point (Series M)
im phi hp d liu DCP SK Differentially Coherent Phase-Shift Keying
Kha dch pha nht qun vi sai DCS Digital Cellular System
H thng mng t bo s DCS Digital Communication System
H thng thng tin s DCS Digital Command Signal (Series T)
Tn hiu lnh digital DCS Digital Crossconnect System (Series M)
H thng kt ni cho digital DCT Discrete Cosine Transform
Bin i cosin ri rc DD Destination Reference (Series T)
Tham chiu im ch DDA Defined Display Area (Series T)
Vng hin th quy nh DDD Direct Distance Dialling
Quay s ng di trc tip
-
DDF Digital Distribution Frame
Khung phn b kiu s DDI Direct Dialling In
Quay s vo trc tip, vo thng DDM Digital Data Multiplexer
B ghp knh s liu digital DDN Defence Data Network
Mng s liu quc phng DDR Dial-on-Demand Routing
nh tuyn quay s theo yu cu DDR Demand Refresh Confirmation Information (Series H)
Thng tin khng nh i mi nhu cu DDS Digital Data Service
Dch v d liu digital DECT Digital European Cordless Telephone
in thoi khng dy digital ca chu u DEK Dansk Elektroteknisk Komit
(Electrotechnical Committee , Denmark)
y ban k thut in t an Mch DEL Delete (Series T)
Xa b, loi b DEMKO Danmarks Elektriske Materielkontrol
(Electrical Testing Laboratory, Denmark)
Phng th nghim o th in, an Mch DES Data Encryption Standard
Tiu chun kha m s liu DES Destination End Station (ATM)
Trm cui pha ch DES Digital Echo Suppressors (Series G)
Cc b trit vang k thut s DFC Data Flow Control
iu khin lung s liu DFS Distributed File System
H thng tp phn tn
-
DFT Distributed Function Terminal (SNA)
u cui chc nng phn tn DG Directorate General (CEC)
Tng Gim c (CEC) DGPS Differential Global Positioning System
H thng nh v ton cu kiu vi sai DGT Direccin General de Telecommunicaciones
(General Dirctorate of Telecommunications, Spain)
Tng cc vin thng, Ty Ban Nha DIB Directory Information Base (Series F, X)
Kho thng tin th mc DID Direct Inward Dialling
Quay s vo trc tip, quay s vo thng DIEL Advisory Committee on Telecommunications for
Disabled and Elderly People (UK)
y ban t vn v vin thng cho ngi gi v tn tt (Anh) DILEP Digital Line Engineering Program
Chng trnh thit k k thut ng dy s DILIC Dual Inline Intergrated Circuit
Vi mch mch t hp hai hng chn cm DIN Deutsches Institut fur Normung (German Standards Institute)
Vin tiu chun CHLB c DIP Dual Inline Package
V vi mch c hai hng chn cm DIS Draft International Standard
Tiu chun tm tt quc t DIS Digital Identification Signal (Series T)
Tn hiu nhn dng digital DISC Disconnect (Series G, Q, V, T, X)
Ngt kt ni DIT Directory Information Tree (Series X)
Cy thng tin th mc DIV Data-In-Voice (Series G)
S liu trong m thoi
-
DKE Deutsche Elektrotechnische Komission im DIN und VDE
(German Electrotechnical Commision in DIN and VDE)
also Deutsches Institut fur Normung
(German Institute for Standardisation)
Vin tiu chun ha CHLB c
DL-DX
DL Distribution List (Series F, X)
Danh mc phn b DLC Digital Loop Carrier
Nh khai thc mng thu bao s DLC Data-Link Control (Series G)
iu khin tuyn thng tin s liu DLC Dynamic Load Control (Series G)
iu khin ti nng ng DLC Sinalling-Data-Link-Connection-Order Signal (Series Q)
Tn hiu Lnh kt ni tuyn s liu bo hiu DLCI Data Link Connection Identifier (Series I, Q, V)
Phn t nhn dng kt ni tuyn s liu DLE Data Link Escape (Series T)
Hy b (thot) tuyn kt ni s liu DLL Data Link Layer (Series X)
Lp kt ni s liu DLL Digital Local Line (Series G)
ng dy ni ht s DLM Dynamic Linear Models (Series E)
Cc m hnh tuyn tnh ng DLM Signalling-Data-Link-Connection-Order Message (Series Q)
Tin bo Lnh kt ni tuyn s liu bo hiu DLPI Data Link Provider Interface (ATM)
Giao din nh cung ng kt ni s liu DLS Data Link Service (Series X)
Dch v kt ni s liu
-
DLSAP Data-Link-Service-Access Point (Series X)
im truy nhp dch v kt ni s liu DLSDU Data-Link-Service-Data-Unit (Series X)
Khi s liu dch v kt ni s liu DLT Down-Loading Termination Procedure (Series T)
Th tc kt ni cui ti xung DLU Digital Line Unit
Khi ng dy s DM Delta Modulation
iu ch delta DM Disconnected Mode (HDLC)
Ch ngt (HDLC) DM Degraded Minutes (Series M, Q)
Cc pht gim cp (cht lng) DM Document Manipulation Class (Series T)
Lp thao tc vn bn DMA Deferred Maintenance Alarm (Series M)
Cnh bo bo dng theo mun DMA Direct Memory Access
Truy nhp b nh trc tip DMB Dynamic Multipoint Bridging
Bc cu a im c ng DMC Desktop Multimedia Conferencing
Hi ngh a phng tin bng my tnh bn DMD Directory Management Domain (Series F, X)
Min qun l th mc DME Distributed Management Environment
Mi trng qun l phn tn DMOS Degradation Mean Opinion Store (Series P)
Lu tr gim nh gim cp trung bnh DMS Digital Multiplex Switch
Chuyn mch ghp knh digital DMUX Demultiplexer (Series G)
B gii iu ch
-
DN Delivery Status Notification (Series T)
Thng bo trng thi phn pht DN Directory Number (Series I)
S th mc DNA Digital Network Architecture
Cu trc mng s DNI Digital Non-Interpolated (Series Q)
Khng c ngoi suy theo k thut s DNIC Data Network Identification Code (X.121)
M nhn dng mng s liu (X121) DNIS Dialled Number Identification Service
Dch v nhn dng s gi va quay ti DNS Domain Name Service
Dch v t tn min DNU Digital Networking Unit
Thit b ni mng s DOD Direct Outward Dialing
Quay s gi ra trc tip DOMSAT Dosmetic Satellite
V tinh ni a DOS Disk Operating System
H iu hnh DOS (a) DOV Data-Over-Voice (Series G)
S liu qua m thoi DP Decadic Pulsing (Series Q)
To xung thp phn DP Dial Pulse (Series I)
Xung quay s DP Dot Pattern (Series T)
M hnh chm chm DPC Destination Point Code (Series M, Q, X)
M im ch DPCM Differential Pulse-Code Modulation
iu xung m vi sai
-
DPE Document Protocol Element (Series T)
Mi trng giao thc vn bn DPN Digital Path Not Provided Signal (Series Q)
Tn hiu ng truyn s khng c cung cp DPNSS Digital Private Network Signalling System
H thng bo hiu mng t nhn digital DPSK Differential Phase-Shift Keying
iu ch dch pha vi sai DQDB Distributed Queue Dual Bus
Bus kp xp hng kiu phn b DR Demand Refresh Request Information (Series H)
Thng tin yu cu i mi nhu cu DR Destination Reference (Series T)
Tham chiu im ch DR Direct Routed (Series E)
c nh tuyn trc tip DR Disconnect Request (Series Q)
Yu cu ngt kt ni DR TPDU Discinnect Request TPDU (Series X)
TPDU yu cu ngt kt ni DRAM Dynamic Random Access Memory
B nh truy nhp ngu nhin ng DRCS Dynamically Redefinable Character Set (Series F, T)
B k t c th xc nh li mt cch nng ng DRM Demand Refresh Mode (Series H)
Ch i mi nhu cu DRN Document Reference Number (Series T)
S ch dn vn bn DRPE Decimal Reference Publication Format (Series X)
nh dng n phm chun thp phn DRR Demand Refresh Request (Series H)
Yu cu i mi nhu cu DRS Digital Reference Sequence (Series G, Q)
Chui chun s
-
DS Danske Standardiseringsrad (Standards Institution, Denmark)
Vin tiu chun, an Mch DS Digital Signal
Tn hiu s DS Digital Section (Series G)
Phn on s DS Document Storage (Series T)
Lu tr vn bn DS-0 Digital Signal, Level 0
Tn hiu s mc 0 DS-1 Digital Signal, Level 1
Tn hiu s mc 1 DS-2 Digital Signal, Level 2
Tn hiu s mc 2 DS-3 Digital Signal, Level 3
Tn hiu s mc 3 DS3DLCP Physical Layer Convergence Protocol
Giao thc hi t lp vt l DSA Directory Service Agent
Hng dch v danh b DSA Distributed Systems Architecture
Cu trc cc h thng kiu phn b DSB Double Sideband (AM)
n bin kp, hai n bin DSE Data Switching Equipment
Thit b chuyn mch s liu DSE Data Switching Exchange (Series D, X)
Tng i chuyn mch d liu DSE Distributed Single Layer Embeded (testmethod) (Series X)
Gn lp n phn b (phng php o th) DSG Data Systems Group
Nhm h thng s liu DSI Detailed Spectrum Investigation (as conducted by CEPT/ERO)
Nghin cu tn ph chi tit (do CEPT/ERO tin hnh)
-
DSI Digital Speech Interpolation (Series E, G, I, Q)
Ni suy ting ni k thut s DSI Digit Sequence Integrity (Series I)
Tnh ton vn ca chui s DSK Downstream Keyer
B phm lung xung DSL Digital Subscriber Line
ng dy thu bao s DSMA Digital Sense Multiple Access
a truy nhp mc tiu digital DSP Digital Signal Processor
B x l tn hiu s DSP Directory System Protocol (Series X)
Giao thc ca h thng th mc DSP Domain Specific Part (Series I, X)
Phn c trng min DSRR Digital Short Range Radio
V tuyn digital c ly ngn DSS Digital Subscriber Signalling System (ISDN, B-ISDN)
H thng bo hiu digital ca thu bao DSS Digital Switched Service
Cc dch v chuyn mch s DSSC Double-Sideband Suppressed Carrier
Sng mang trit hai n bin DSSI Digital Subscriber Signalling System No.1 (Series Q)
H thng bo hiu thu bao s No.1 DST-REF Destination Reference (Series X)
Tham chiu im ch DSTE Data Subscriber Terminal Equipment
Thit b u cui ca thu bao s liu DSU Digital Service Units
Cc khi dch v s DSVD Digital Simultaneous Voice and Data
Ting ni v s liu digital ng thi kiu s
-
DSX Digital Signal Cross-Connect
Kt ni cho tn hiu s DT TPDU Data TPDU (Series X)
TPDU s liu DTAM Document Transfer And Manipulation (Series T)
Chuyn giao v thao tc vn bn DTC Digital Transmit Command (Series T)
Lnh truyn dn digital DTE Data Terminal Equipment
Thit b u cui s liu DTE Defense Technology Enterprise
Doanh nghip cng ngh quc phng DTI Department of Trade and Industry (UK)
B Thng mi v Cng nghip Anh Quc DTL Diode - Transistor Logic
Logic Dit - Tranzito DTLU Digital Terminal Line Unit
Khi u cui ng dy u cui digital DTMF Dual Tone Multi Frequency
a tn m kp DTP Data Transfer Part (Series I)
Phn chuyn giao d liu DTS Digital Transmission System
H thng truyn dn digital DTS Digital Test Sequence (Series P)
Chui o th digital DUA Directory User Agent
i l ngi s dng danh b DUP Data User Part (Series Q, X)
Phn ngi s dng s liu DVB Digital Video Broadcasting
Truyn hnh qung b s DVM Data over Voice Multiplexer
S liu trn b ghp knh thoi
-
DVT Digital Video Terminal
u cui video s DXE Either a DTE or a DCE (Series X)
Hoc mt DTE hoc mt DCE DXI Data Exchange Interface (ATM, SMDS)
Giao din tng i s liu
E-EL
E Essential (Series F, X)
Ct yu EA Evaluation Authority
Thm quyn nh gi, c quan thm nh EA Expedited Data Acknowledgement (Series X)
Bo nhn s liu pht nhanh EA Extended Address Field Bit (Series Q)
Bit ca trng a ch m rng EA TPDU
Expedited Acknowledge TPDU (Series X)
Bo nhn nhanh EAD Extended Addressing (Called) (Series T)
nh a ch m rng (b gi) EADAS Engineering and Administrative Data Acquisition System
H thng tip nhn d liu qun tr v thit k EAG Extended Addressing (Calling) (Series T)
nh a ch m rng ch gi EAROM Electrically Alterable Read-Only Memory
B nh c kh hiu in t EARS Electro-Aucoustic Rating System (Series P)
H thng phn loi m in EBCDIC Extended Binary Coded Decimal Interchange Code (Series D)
M trao i m rng ca s thp phn EBU European Broadcasting Union
Lin minh Pht thanh Truyn hnh chu u EC European Community
Cng ng Chu u
-
EC Echo Cancellers (Series G)
Cc b trit tp m EC Equivalent Capacity (Series E)
Dung lng tng ng ECA Emergency Changeover Acknowledgement
Bo nhn khn i ngc ECBF European Citizens Band Federation
Lin on bng tn nghip d Chu u ECC Error Correcting Code
M sa sai ECFRN European Consultative Forum for Researching Networking
Din n t vn ca chu u v nghin cu t chc mng ECG Elctro-cardiogram (Series V)
in tm ECH Echo Cancellation (Series G)
Hy vang, hy ting vng ECHO European Commission Host Organisation
C quan ch qun ca y ban chu u ECITC European Committee for IT Testing and Certification
y ban chu u v th nghim v cp chng ch cng ngh thng tin
ECL Emitter - Coupled Logic
Vi mch logic ghp cc gp ECM Emergency Changeover Order (Series Q)
Lnh i chiu khn ECMA European Computer Manufactures Association
Hip hi nhng nh sn xut my tnh chu u ECO Emergency Changeover Message (Series Q)
Thng bo i chiu khn ECS European Communication Satellite
V tinh truyn thng chu u ECSA Exchange Carriers Standards Asociation
Hip hi tiu chun ha cc nh khai thc in thoi ECT Echo Cancellation Technique (Series V)
K thut trit ting vng
-
ECTEL The Association of the European Telecommunications
and Professional Electronics Industry
Hip hi cng nghip in t chuyn nghip v vin thng chu u
ECTRA European Committee for Telecommunications Regulatory Affairs
y ban chu u v iu hnh vin thng ECTS Electronic Custom Telephone System
H thng in thoi mua hng bng in t ECTS Echo Canceller Testing System (Series M, O)
H thng o th ca b gim ting vng ECTTC European Committee for Telecommunication Testing
Certification
y ban chu u v o kim v cp chng ch cho vin thng ECTUA European Council of Telecommunications Users Association
Hi ng cc hip hi khch hng vin thng chu u ED Expedited Data (Series X)
S liu pht nhanh ED TPDU Expedited Data TPDU (Series X)
D liu chuyn pht nhanh ED-TPDU-NR ED-TPDU Number (Series X)
S TPDU-ED EDAC Error Detection and Correction
Pht hin v sa sai EDAPS Electronic Data Processing
X l s liu in t EDB End Of Block
Cui khi EDC Error Detecting Code
M pht hin sai li EDCE Error Detection and Correction Equiment
Thit b pht hin v sa sai EDFA Erbium Doped Fiber Amplifier
B khuch i quang c kch thch bng Eri EDGE Electronic Data-Gathering Equiment
Thit b thu gom d liu bng in t
-
EDH Electronic Document Handling
X l vn bn bng in t EDI Electronic Data Interchange
Trao i s liu in t EDIFACT Electronic Data Interchange
For Administration, Commerce, and Trade (ANSI)
Trao i d liu in t v hnh chnh, thng mi v mu dch EDN Expedited Data Negotiation (Series X)
m phn d liu chuyn nhanh EDP Electronic Data Processing
X l d liu in t EDTV Extended Definition Television
Truyn hnh phn gii m rng EEC European Economic Community
Cng ng kinh t chu u EED Emergency Escape Device
Thit b khc phc s c khn cp EEE Electrical, Electronic Electromechanique (partlist)
(Danh mc cc cm) in, in t v c in EEMA European Electronic Mail Association
Hip hi bu chnh in t chu u EESS Earth Exploration - Satellite Service
Dch v v tinh thm him tri t EETDN End-To-End Transit Delay Notification (Series T, X)
Thng lng thi gian tr qu t u cui ti u cui EF Elementary Function (Series I)
Chc nng c bn EFdS Error-Free Deciscond (Series X)
xi giy khng li EFM Eight To Fourteen Modulation
iu ch 8/14 EFS End of Frame Sequence (LAN)
Cui chui xung (LAN), kt thc dy khung EFS Error-Free Seconds (Series Q, X)
S giy khng li
-
EFTA European Free Trade Association
Hip hi mu dch t do chu u EFTPOS Electronic Funds Transfer Point Sale
im chuyn qu bn hng bng in t EGC Enhanced Group Call (Series F)
Cuc gi nhm nng cao EGSM Extended Global System for Mobile Communications
H thng thng tin di ng ton cu m rng EH Exterbal Host (Series T)
Trm ch bn ngoi EHF Extremely High Frequency
Tn s cc cao EI Expansion Interface
Giao din m rng EI Exchange Identification (Series V)
Nhn dng tng i EIA Electronics Industry Association
Hip hi cng nghip in t EID End Point Identifier (Series I)
B nhn dng im cui EIR Equipment Identity Register
B ghi nhn dng thit b EIRP Effective Isotropic Radiated Power
Cng sut bc x ng hng hiu dng EISA Extended Industry Standard Achitecture
Cu trc tiu chun cng nghip m rng EIT Encoded Information Type (Series F, X)
Loi thng tin m ha EIUF European ISDN User Forum
Din n ngi dng ISDN chu u ELAN Emulated Scan Line Description (Series T)
M t ng qut m rng ELOT Hellenic Organisation for Standardisation (Greece)
C quan tiu chun ha Hellenic (Hy Lp)
-
ELR Expected Maximum Transit Delay Local-To-Remote (Series X)
Thi gian tr qu cc i d kin t ni ht ti trm xa ELT Emergency-Load-Transfer Signal (Series X)
Tn hiu chuyn ti khn cp
EM-EW
EM End Mark (Series T)
Du kt thc EM End Of Medium (Series T)
Kt thc mi trng (cha) EMA Enterprise Management Architecture
Cu trc qun l doanh nghip EMAG ETSI MIS Advisory Group
Nhm c vn ETSI MIS EMC Electromagnetic Compatibility
Tng thch in t EMI Electromagnetic Interference
Can nhiu in t EML Element Management Layer (ATM)
Lp qun l thnh phn EMP Electromagnetic Pulse
Xung in t EMS Extended Memory Specification
Yu cu k thut nh m rng EMS Element Management System (ATM)
H thng qun l thnh phn EMT Elapsed Maintenance Time
Thi gian kt thc bo dng EMTBG Estimated Mean Time Between Failure
Thi gian trung bnh c lng gia hai ln s c EN Norme Europenne (European Standard)
Tiu chun chu u ENG/OB Electronic News Gathering/Outside Broadcast
Thu thp tin tc in t/pht qung b ra
-
ENQ Enquiry (Serie T)
Hi ENS Enterprise Network Services
Cc dch v mng doanh nghip ENSDU Expedited Network-Service-Data-Unit (Series X)
Khi d liu dch v mng chuyn nhanh ENSO ETSI National Standardisation Organisations (ETSI)
Cc t chc tiu chun ha quc gia ca ETSI ENV European pre-standard
Tin tiu chun chu u EOA End Of Address (Series F)
Kt thc a ch EOB End Of Block Marker (Series H)
Kt thc nh du EOC Embeded Operations Channel (Series G)
Knh khai thc EOC End-Of-Cluster (Series H)
Kt thc nhm EOC End Of Contents
Ht ni dung EOCS End Office Connections Study (Series G)
Nghin cu cc kt ni tng i u cui EOFB End-Of-Fascimile Block (Series T)
Kt thc khi Fax EOP End-Of-Procedures (Series T)
Kt thc th tc EOR End Of Retransmission
Kt thc pht li EOS End-Of-Selection (Series U, X)
Kt thc chn EOSR End Of Status Request Signal (Series U)
Kt thc tn hiu yu cu trng thi EOT End Of Transaction (Series U)
Kt thc giao dch
-
EOT End Of Transmission (Series T)
Kt thc truyn dn EOT End Of TSDU Mark (Series X)
Kt thc du ISDU EOTC European Organisation for Testing and Certification
T chc o kim v cp chng ch chu u EP Executive Process (Series I)
Qu trnh tha hnh EPHOS European Procurement Handbook for Open Systems
(A European initiative to provide member
States governmental offices with detailed
public procurement specifications for open systems)
Sch hng dn tm kim cc h thng m ca chu u (Mt sng kin ca chu u nhm cung cp cc yu cu k thut v cc h thng m cho cc c quan chnh ph) cc nc thnh vin.
EPIRB Emergency Position Indicating Radio Beacons
Cc i cnh bo v tuyn ch th v tr khn cp EPR Earth Potential Rise (Series K)
Nng cao th nng t EPROM Electrically Erasable Programable Read-Only Memory
PRM c th xa bng in ER Essential Requirement(s)
Cc yu cu thit yu ER Error (Series X)
Li, sai ER Explicit Rate (ATM)
Tc tng minh ERC European Radiocommunications Committee
y ban thng tin v tuyn chu u ERL Expected Maximum Transit Delay Remote-To-Local (Series X)
Thi gian tr ti a d kin - u xa ti ni ht ERMES European Radio Messaging System
H thng gi tin v tuyn Chu u ERO European Radiocommunications Office
Vn phng thng tin v tuyn Chu u
-
ERP Ear Referece Point (Series P) ERP Effective Radiated Power
Cng sut pht x hiu dng ERP Response For End Of Retransmission (Series T)
Tr li cho vic kt thc pht li ERT Equivalent Random Traffic (Series E)
Lu lng ngu nhin tng ng ES European Standard
Tiu chun Chu u ES Echo Suppressor (Series G)
Cc b trit ting vng ES End Station (ATM)
Trm u cui ES Errored Seconds (Series M)
Cc giy b li ESA European Space Agency
Hng v tr chu u ESB European Standardisation Board
Ban Lnh o tiu chun ha Chu u ESC European Standardisation Council
Hi ng tiu chun ha chu u ESC Escape (Series I)
Thot, xa ESD European Satandards Database
C s d liu cc tiu chun Chu u ESDI Enhanced Small Device Interface
Giao din dng cho thit b nh tnh nng cao ESF Extended Superframe Format (Series O)
Khun dng siu khung m rng ESI End System Identifier (ATM, ISO)
B nhn dng h thng cui (ATM, ISO) ESI Equivalent Step-Index
Ch s bc tng ng ESIG European SMDS Interest Group
Nhm cng quyn li SMDS Chu u
-
ESMR Enhanced Specialised Mobile Radio
V tuyn di ng chuyn dng nng cao ESN Equipment Serial Number
S x-ri thit b ESO European Standardisation Organisation
T chc tiu chun ha Chu u ESP Enhanced Service Provider
Nh cung cp dch v nng cao ESPRIT European Strategic Progamm for Research In Information
Technology
Chng trnh chin lc Chu u v nghin cu v pht trin ESS Electronic Switching System
H thng chuyn mch in t ESS European Standardisation System
H thng tiu chun ha chu u ESTS Echo Suppressor Testing System (Series O)
H thng th nghim b trit ting vng ESU Exchange Signalling Unit (Series Q)
Khi bo hiu ca tng i ET Exchange Terminal (Series G)
u cui tng i ET Exchange Termination (Series I, Q)
Kt cui ca tng i ETACS Extended Total Access System
H thng truy nhp hon ton m rng ETB End Of Transmission Block (Series T)
Kt thc khi pht ETCI Electro-Technical Council of Ireland
y ban k thut in t Ireland ETM Eight To Ten Modulation
iu ch 8/10 ETNO Association of European Public Telecomunications Network
Operators
Hip hi cc nh khai thc mng vin thng cng cng chu u ETO European Telecommunications Office
Vn phng vin thng chu u
-
ETR ETSI Technical Report
Bo co k thut ca ETSI ETR Easy To Reach (Series E, Q)
D t c ETS European Telecommunications Standard
Tiu chun vin thng chu u ETSA European Telecommunications Services Association
Hip hi cc dch v vin thng Chu u ETSI European Telecommunications Standarda Institute
Vin tiu chun vin thng Chu u ETX End Of Text (Series T)
Kt thc vn bn EU European Union
Lin minh Chu u EUM Extended-Unsuccessful-Backward Set-up Information Message
Indication (Series Q)
Ch th tin bo m rng ca thng tin c thit lp thnh cng theo hng ngc
EUREKA European Research Co-operation Agency
C quan hp tc nghin cu chu u EURESCO European Institute for Research
and Strategic Studies in Telecommunications
Vin chu u v nghin cu khoa hc v chin lc trong vin thng
EUROBIT European Association of Manufactures of Business
Machines and Data Processing Equipment
Hip hi chu u ca nhng nh sn xut thit b vn phng
v x l s liu EUSIDIC European Association of Information Services
Hip hi chu u v cc dch v tin hc EUT Equipment Under Test (Series O)
Thit b ang trong qu trnh o th EUTELSAT European Telecommunications Satellite Organisation
T chc v tinh vin thng Chu u EWOS European Workshop for Open Systems
-
Hi tho chu u v cc h thng m Chu u EWP ETSI Work Programme
Chng trnh lm vic ca ETSI
F
F Final Bit (Series T)
Bt kt thc F Flag (Series Q)
C hiu F-Link Fully Associated Link
Truyn kt ni hon ton kt hp FACTS Fully Automated Collect and Third-Number Service
Dch v s gi th ba phi tnh cc hon ton t ng FAM Forward-Address Message (Series Q)
Tin bo a ch hng thun FAS Frame Alignment Sequence (T-1, E.1)
Chui ng chnh khung FAS Frame Alignment Signal (Series G, H, I, O)
Tn hiu ng chnh khung FAW Frame Alignment Word (Series H)
T ng chnh khung FC Fault Condition (Series I)
Trng thi h hng FC Functional Components (Series I)
Cc cu kin chc nng FC Feedback Control
iu khin hi tip FCC Federal Communications Commission
y ban truyn thng lin bang FCC Forward Control Channel
Knh iu khin hng i FCD Facsimile Coded Data (Series T)
S liu m ha Fax FCF Facsimle Control Field (Series T)
-
Trng iu khin fax FCM Signalling Traffic Flow Control Message (Series Q)
Tin bo iu khin lung lu lng FCS Federation of Communications Services (UK)
Lin on cc dch v thng tin (Anh ) FCS Frame Check Sequence (Series Q, T, V, X)
Chui kim tra khung FD Frequency Distance
C ly theo tn s FD Frequency Diversity
Phn tp theo tn s FDD Frequency Division Duplex
Song cng chia tn s FDDI Fibre Distributed Data Interface
Giao din s liu phn b theo cp quang FDM Frequency Division Multiplex(ed)
Ghp knh chia tn s FDMA Frequency Division Multiple Access
a truy nhp chia tn s FDMH Fixed Daily Measurement Hour (Series E)
Gi o hng ngy c nh FDMP Fixed Daily Mesurement Period (Series E)
Chu k o hng ngy c nh FDOS Floppy Disk Operating System
H thng iu hnh bng a mm FDT Formal Description Technique (Series X, Z)
K thut m t hnh thc FE Functional Element (Series G)
Mi trng chc nng FE Functional Entity (Series Q)
Thc th chc nng FEA Functiona Entity Action (Series I, Q)
Hnh vi ca thc th chc nng FEBE Far-End-Block-Error (Series G)
Li khi u xa
-
FEC Forward Error Correction
Sa sai hng i FEE Far-End Error (Series M)
Li (sai) u xa FEI Federation of the Electronics Industry (UK)
Lin on cng nghip in t (Anh) FERF Far End Receive Failure (Series G)
Mt thu u xa FEXT Far-End Crosstalk (Series G, Q)
Xuyn m u xa FF Form Feed (Series T, X)
y giy FFR Freeze Frame Request (Series H)
Yu cu khung ng lnh FFT Fast Fourier Transform (Series P)
Bin i furie nhanh FG Functional Group (ATM)
Nhm chc nng FH Failure Indication Information (Series G)
Thng tin a ch h hng FI Format Identifier (Series V)
Phn t nhn dng khun FIB Forward Indicator Bit (Series Q)
Bt ca b ch th hng thun FIF Facsimile Information Field (Series T)
Trng tin ca Fax FIFO First In, First Out (Series E, P, X)
Vo trc, ra trc FISU Fill-in Signal Unit (Series Q)
Khi tn hiu in vo FITE Forward Interworking Telephone Event (Series Q)
Bin c my in thoi cng hot ng hng thun FITL Fiber In The Loop
Cp quang trong mch thu bao
-
FM Frequency Modulation
iu tn FM Function Management
Qun l chc nng FM1 Frame Mode 1 (Series H)
Ch khung No.1 FMEA Fault Modes and Effect Analysis (Series E)
Phn tch cc ch , cc tc ng v tnh nghim trng ca s c FMH Function Management Header (SNA)
Tiu (mo u) qun l chc nng FMVFT Frequency Modulated Voice Frequency Telegraph (Series R)
in bo tn s in thoi iu tun FNPA Foreign Numbering Plan Area
Vng k hoch nh s ngoi giao FO Fiber Optics
Cp si quang FOC Factor Of Coorporation
H s phi hp hot ng FOI End Of Input (Series F, T, U)
Kt thc u vo FOL End-Of-Line (Series T)
Kt thc ng dy FOM End-Of-Message (Series F, T, U)
Kt thc tin bo FOMS/FUSA Frame Operations Management System/Frame User Switch
Access System
H thng qun l cc hot ng khung/H thng truy nhp chuyn mch thu bao theo khung
FOT Forward Transfer Signal (Series Q)
Tn hiu chuyn theo hng thun FPF Facility Parameter Field (Series X)
Trng tham s tin ch FPLF Field Programable Logic Family
H vi mch logic c th lp trnh khi s dng FPLMTS Future Public Land Mobile Telecommunication System
H thng thng tin di ng mt t cng cng trong tng lai
-
FR Frame Relay
Chuyn tip khung FR Frame Reject (Series V)
Bc b khung FRAD Frame Relay Access Device
Thit b truy nhp chuyn tip khung FRBS Frame Relay Bearer Service
Dch v mang ca chuyn tip khung FRC Fault Reporting Centre (Series N)
Trung tm thng bo s c FRMR Frame Reject (Series G, Q, X)
Bc b khung FRP Field Repetition (Series H)
Lp li trng FRS Frame Relay Service
Dch v chuyn tip khung FRS Frame Relay Switch
Chuyn mch ca chuyn tip khung FRS Fundamental Reference System (Series P)
H thng tham chiu c bn FS Figure-Shift (Series S)
Dch hnh FS Further Study (Series X)
Nghin cu tip FSG The ETSI PSTN Full Steering Group
Nhm ch o ton b cng vic PSTN ca ETSI FSK Frequency Shift Keying
Kha dch tn, iu ch dch tn FSL Flexible Service Logic
Logic dch v linh hot FSM Forward Set-up Message (Series Q)
Tin bo thit lp hng thun FSN Forward Sequence Number (Series Q)
S chui theo hng thun
-
FSS Fixed-Satellite Service
Dch v v tinh c nh FST Field Start (Series H)
Khi ng trng FTA Fault Tree Analysis (Series E)
Phn tch cy s c FTAM File Transfer Access & Management
Truy nhp v qun l chuyn tp FTB Fade-To-Black
Chuyn dn sang en FTP File Transfer Protocol
Giao thc chuyn tp FTTC Fiber to the Curb
Cp quang ti va h FTTH Fiber to the Home
Cp quang ti nh FTW Forward Travelling Wave
n sng chy FUNI Frame User-to-Network Interface (ATM)
Giao din khch hng-mng ca khung (ATM) FUR Fast Update Request (Series H)
Yu cu cp nht nhanh FWS Fixed Wireless Station
Trm v tuyn c nh FX Foreign Exchange
Tng i quc t FX Fixed Station
Trm c nh FXS Foreign Exchange Station
Tng i quc t FZA Fernmeldetechnisches Zentralamt (Test laboratory, Austria)
Phng o th (o)
G
-
G.Fr Gold francs (Series D)
ng France vng G/T Gain-over-noise Temprature
Tng ch trn nhit tp m G3 Group 3
Nhm 3 (ca ITU) G3Fax Group 3 Facsime Type (Series X)
Fax nhm 3 GA General Assembly (ETSI)
Hi ngh ton th (ETSI) GADS Generic Advisory Diagnostic System
H thng d ton t vn chung GAP Groupe d Analyse(s) et Prognose(s)
Nhm phn tch v d bo GAP Generic Access Profiles
Cc m t truy nhp mc ch chung GATT Global Agreement on Tarrifs and Trade
Hip nh ton cu v thu quan v thng mi GBR Green, Blue, Red
Xanh, lc, GBSC Group of Blocks Start Code (Series H)
Nhm m khi ng khi GC Global Control (Series I)
iu khin ton cc GCAC Generic Connection Admission Control
iu khin nhp kt ni chung GCC Generic Conference Control
iu khin hi ngh tng thch chung GCC Graphic Character Composition (Series T)
Cu trc k t ha GCRA Generic Cell Rate Algorithm
Thut ton chung nh gi GDCI General Data Communications Interface (Series V)
Giao din truyn thng s liu chung
-
GDP Gross Domestic Product
Tng sn phm trong nc GES Ground Earth Station (Series Q)
Trm mt t trn t lin GF Global Functions (Series I)
Cc chc nng ton din GFC Generic Flow Control (ATM)
iu khin lung tng thch chung GFI General Format Identifier (X.25)
Phn t nhn dng khun dng chung GGCA Geometric Graphics Content Architecture (Series T)
Kin trc hnh hc GGMV Group of blocks Global Motion Vector (Series H)
Nhm cc khi vc t di ng ton cu GI Group Identification (Series T)
Nhn dng nhm GI Group Identifier (Series T, V)
Phn t nhn dng nhm GIO Generic Interface for Operations (SMDS)
Giao din tng thch chung cho khai thc (SMDS) GL Group Length (Series v)
di nhm GMDSS Global Maritime Distress and Safety System
H thng cu nn v an ton hng hi ton cu GMSC Gateway Mobile Services Switching Centre
Tng i cng cc dch v di ng GMT Greenwich Mean Time (Series E, D, F)
Gi quc t, gi GMT GN Group Number (Series H)
S hiu nhm GND Ground
t, mt GoS Grade of Service
Cp phc v
-
GOSIP Government Open Systems Interconnection Profile
M t kt ni cc h thng m ca chnh ph GPI General Purpose Interface
Giao din mc ch chung GPS Global Positioning System
H thng nh v ton cu GR Graphic Representation (Series Z)
Trnh by ha GRA Circuit Group Reset-acknowledgement Message (Series Q)
Tin bo gim st nhm mch GRM Circuit Group Supervision Message (Series Q)
Tin bo ti xc lp nhm mch GRQ General Request Message (Series Q)
Tin bo yu cu chung GRS Circuit Group Reset Message (Series Q)
Tin bo ti xc lp nhm mch GSA GSM System Area
Vng ca h thng GSM GSM Special Mobile Group; and: The Pan-European Cellualar Digita
System
Nhm c bit v di ng v H thng mng t bo s ton chu u
GSM Global System for Mobile Communications
H thng thng tin di ng ton cu GSM General forward Setup Information Message (Series Q)
Thng bo tin tc v xc lp hng thun chung GSM MS GSM Mobile Station
Trm di ng GSM GSM PLMN GSM Public Land Mobile Network
Mng di ng mt t cng cng GSM GSO Geostationary Orbit
Qu o a tnh GSS Group Switching Subsystem
H thng con chuyn mch nhm GSTN General Switched Telephone Network (Series G, V)
Mng in thoi chuyn mch chung
-
GT Given Token (Series T)
Trao th bi GT Global Title (Series Q)
Tiu ton cu GUI Graphic User Interface
Giao din ngi dng ha
H
H Horizontal
ng chn tri, nm ngang H -O chan HO Channel
Knh 384 Kbit/s (6 knh DSO ca mt mch T1) H-channels Cc knh H (thuc PR1) H10-chan H10-channel
Knh 1472 Kbit/s ca Bc M H11-chan H11-channel
Knh 1536 Kbit/s ca Bc M H12 H12
Knh tc s cp 1920 Kbit/s ca chu u HAR CENELEC Agreement for electrical cords and cables
Hip nh v dy v cp in ca CENELEC HBA Hardware Failure Oriented Group Blocking-
acknowledgement Message (Series Q)
Tin bo nhn chn nhm nh hng h hng phn cng HBFG Host Behavior Functional Group
Nhm chc nng ng x ca my ch HBUR Hardware Failure Oriented Circuit Group Blocking and
Unblocking Receipt (Series Q)
Chn thu v khng chn thu nhm mch c nh hng h hng phn cng
HBUS Hardware Failure Oriented Circuit Group Blocking and Unblocking Sending (Series Q)
Chn v khng chn gi nhm mch c nh hng h hng phn cng
HCM High Capacity Multiplexing
Ghp knh dung lng cao
-
HCSPR Hundred Call Seconds Per Hour
S giy mt trm cuc gi trong mt gi HCV High Capacity Voice
Thoi dung lng cao HDB2 High Density Bipolar of order 2 (Series G)
Lng cc mt cao bc 2 HDB3 High Density Bipolar of order 3 (Series O)
Lng cc mt cao bc 3 HDLC High-Level Data Link Control
iu khin tuyn kt ni s liu mc cao HDMS High-Density Memory System
H thng nh mt cao HDRC Hypothetical Digital Reference Connection (Series E, I)
Kt ni s gi nh chun HDSL High-data-rate Digital Subscriber Line
ng dy thu bao s tc s liu cao HDT Host Digital Terminal
u cui my ch k thut s HDTM Half-Duplex Transmission Module (X.25)
Modem truyn dn bn song cng HDTM Half-Duplex Transmission Module (Series T)
Modun truyn dn bn song cng HDTV High Definition Television
Tivi phn gii cao HEC Harder Error Control (ATM)
Sa sai tiu HES Home Electronics System(s)
(Cc) h thng in t gia dng HF High Frequency
Tn s cao, cao tn
HFC Hybrid Fiber/Coax
Cp quang/ ng trc hn hp HFT Hands-Free Telephone (Series P)
My in thoi b ti
-
HGR Hardware Failure Oriented Group Blocking Message (Series Q)
Thng bo chn nhm v h hng phn cng HGU Hardware Failure Oriented Group Unbloking Message
(Series Q)
Thng bo khng chn nhm v h hng phn cng HIPERLAN High Performance local area network
Mng LAN cht lng cao HIPPI High Performance Parallel Interface
Giao din song song hiu nng cao HLC High Level Committee of ITU
Hi ng cp cao ca ITU HLC High Layer Compatility (Series E, I, Q, T)
Tng thch lp cao HLF High Layer Function (Series I)
Chc nng lp cao HLL High Level Language
Ngn ng bc cao HLL Half-Loop Loss (Series G)
Suy hao na vng HLR Home Location Register
B ng k v tr thng tr HMA High Memory Area
Vng nh cao cp HMCG Signalling Link Congestion (Series Q)
Tc nghn tuyn bo hiu HMDC Message Descrimination (Series Q)
Phn gii tin bo HMDT Message Distribution (Series Q)
Phn b tin bo HMRT Message Routing (Series Q)
nh tuyn tin bo HMSO Her Majestys Stationery Office (UK)
Tng i c nh ca n hong (Anh) HNPA Home Numbering Plan Area
Vng k hoch nh s trong nc
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HOSTID Host Identifier
Phn t nhn dng my ch HP High Pass (Series G)
(B lc) thng cao HPB Character Postion Backward (Series T)
nh v k t hng ngc HPLMN Home Public Land Mobile Network (Series D, Q)
Mng di ng mt t cng cng trong nc, thng tr HPR High Performance Routing
nh tuyn hiu nng cao HPR Character Postion Relative (Series I)
nh v k t quan h HR Hypothetical Reference (Series G)
Gi nh chun HRC Hypothetical Reference Circuit (Series G, H, P)
Mch gi nh chun HRDL Hypothetical Reference Digital Link (Series G)
Tuyn s gi nh chun HRDP Hypothetical Reference Digital Path (Series G)
ng truyn s gi nh chun HRDS Hypothetical Reference Digital Section (Series G, M)
on s gi nh chun HRPF Hexadecimal Reference Publication Format (Series X)
nh dng n phm gi nh chun HRX Hypothetical Reference Connection (Series E, G, I, M)
Kt ni gi nh chun HSD High Speed Data (Series E)
S liu tc cao HSD Honestly Significant Difference (Series P)
S chnh lch tht ng k HSLAN High Speed LAN
Mng LAN tc cao HSPSD High-Speed Packet Switched Data
S liu chuyn mch gi tc cao
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HSRC Hypothetical Signalling Reference Connection (Series Q)
Kt ni bo hiu gi nh chun HSSI High-Speed Serial Interface (ANSI)
Giao din ni tip tc cao (ANSI) HT Horizontal Tabulation (Series T, X)
Lp biu ngang HTML Hypertext Markup Language
Ngn ng nh du siu vn bn HTR Hard-To-Reach (Series E, F, Q)
Kh t ti, kh vn ti HTTP Hypertext Transfer Protocol (IETF)
Giao thc chuyn ti siu vn bn HUA Hardware Failure Oriented Group Unblocking
Acknowledgement Message (Series Q)
Tin bo nhn khng chn nhm b hng phn cng HVAC Heating, Ventilation, and Air Conditioning
Si m, qut gi v iu ha
I-IM
I Infrared
Ngoi , hng ngoi I Information (Series G, Q, V, X)
Thng tin I-ETS Interim European Telecommunications Standard
Tiu chun vin thng chu u tm thi I/C Incoming (Series I)
Gi n I/O Input/Output
Vo/ra I/O Input/Output (Series F, X)
Vo/ra IA Incoming Access (Series X)
Truy nhp gi n IA International Alphabet (Series X)
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Bng ch ci quc t IA5 International Alphabet No.5 (Series Q, R, T, V)
Bng ch ci quc t s 5 IAC Initial Alignment Control (Series Q)
iu khin sp xp ban u IACC Inter-aural Cross Correlation
Tng quan cho gia thnh gic IACK Service Acknowledgement Signal (Series U)
Tn hiu bo nhn dch v IACS Integrated Access and Crossconnect System
H thng tng hp truy nhp v ni cho IAEA International Atomic Energy Agency (Series K)
C quan nng lng nguyn t quc t IAFIS Integrated Automated Fingerprint Identification System
H thng nhn dng du vn tay t ng tng hp IAI Initial Address Message With Additional Information (Series Q)
Tin bo a ch ban u vi thng tin ph IAM Initial Address Message (Series E, I, Q)
Tin bo a ch u IANA Internet Address Naming Authority
Thm quyn t tn a ch Internet IARU International Amateur Radio Union
Lin on v tuyn nghip d quc t IASG Internetwork Address Sub-group
Phn nhm a ch lin mng IBC Integrated Broadband Communication
Thng tin bng rng tng hp IBN Institut Belge de Normalisation (Standards Institute, Belgium)
Vin tiu chun ca B IBS International Bussiness Service (An INTELSAT acronym)
Dch v quc t cho cc doanh nghip (t vit tt ca INTELSAT)
IC Integrated Circuit
Vi mch, mch tch hp IC Interlock Code (Series E, X)
M kha lin ng
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IC Interexchange Carrier
Hng lin tng I, cng ty in thoi ng di ICB Incoming Calls Barred (Series X)
Cc cuc gi n b chn ICC Incoming Trunk Circuit (Series Q)
Mch trung k gi n ICCB Internet Control and Configuration Board
Ban cu hnh v iu khin Internet ICCM Interworking By Call Control Mapping (Series X)
Cng lm vic nh nh x iu khin cuc gi ICD International Code Designator (ISO)
C quan son tho v m quc t ICI Intercarrier Interface (SMDS)
Giao din gia cc nh khai thc, gia cc h truyn dn (SMDS) ICMP Internet Control Message Protocol
Giao thc tin bo iu khin Internet ICN International CUG Number (Series Q)
S CUG quc t ICP Instituto das Communicaces des Portugal
(The Portuguese Institute of Communications)
Vin thng tin B o Nha ICP Internet Control Protocol
Giao thc iu khin Internet ICR Initial Cell Rate
H s t bo ban u ICS Identification of Character Set (Series T)
Nhn dng b k t ICT Information and Communication Technologies
Cc cng ngh tin hc v truyn thng ID Identification
Nhn dng ID Identity (Series Q, T)
Nhn dng, nt nhn dng IDA Integrated Data Access or Intergrated Digital Access
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Truy nhp s liu tng hp hoc Truy nhp digital tng hp IDD International Direct Dialling (Series E)
Quay s quc t trc tip IDI Initial Domain Identifier (ISO)
Phn t nhn dng min ban u (ISO) IDI Initial Domain Identifier (Series I, X)
Phn t nhn dng min ban u IDLC Integrated Digital Loop Carrier (Telephony)
H thng chuyn ti mch thu bao s tng hp (in thoi) IDN Intergrated Digital Network
Mng s lin kt IDNX Integrated Digital Network Exchange
Tng i ca mng s lin kt IDP Internet Datagram Protocol
Giao thc gi s liu Internet IDP Initial Domain Part (Series I, X)
Phn min ban u IDS Interworking Data Syntax (Series T)
C php s liu lm vic IDSE International Data Switching Exchange (Series I, X)
Tng i chuyn s liu quc t IDTV Improved Difinition Television
Truyn hnh phn gii cao ci tin IDU Interface Data Unit
Khi s liu phi ghp IE Information Element (Series Q, T) IEC International Electrotechnical Commission
y ban k thut in t quc t IEE Institution of Electrical Engineers (UK)
Hc vin k s in (Anh) IEEE Institute of Electrical and Electronic Engineers
Hc vin k s in v in t IENGF Instituto Elettrotecnico Nazionale Galileo Feraris (Italy)
Vin k thut in quc gia Galileo Feraris (Italia) IES Information Exchange Services
Cc dch v trao i thng tin
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IESG Internet Engineering Steering Group
Nhm iu hnh k thut Internet IETF Internet Engineering Task Force
Lc lng c trch k thut Internet IEV International Electrotechnical Vocabulary (Series P, S)
T in k thut quc t IFRB International Frequency Registration Board
y ban ng k tn s quc t IFS International Freephone Service (Series D)
Dch v in thoi quc t IFW Inverted Frame Word (Series G)
T khung b hon v IGS Identify Graphic Subrepertoire (Series T, X)
Nhn dng siu danh mc ha IGT Ispettorato Generale Delle Telecomunicazioni
(General Inspectorate of Telecommunications, Italy)
Tng thanh tra vin thng Italia IIR Infinite Impulse Response
p ng xung bt nh IIT Integrated Information Transport
Chuyn ti thng tin tng hp IJ Identification of Justification (Series H)
Nhn dng s cn chnh ILD Infection Laser Diode
it Laser kiu phun ILEC Independent Local Exchange Carrier
Nh tng i ni ht c lp ILF Infra Low Frequency
Tn s di mc thp ILIL Input Longitudinal Interference Loss (Series G, O)
Tn hao u vo do can nhiu theo kinh tuyn IM Intensity Modulation
iu ch theo mt IM Interpersonal Messaging (Series X)
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X l tin bo gia cc c nhn IMA Input Message Acknowledgement (Series F, U)
Bo nhn tin bo u vo IMC International Maintenance Centre (Series E)
Trung tm bo dng quc t IMCC ISDN Management and Co-ordinating Committee
y ban qun l v phi hp ISDN IMD Inter Modulation Distortion
Mo gia cc ln iu ch IMDTC International Multiple Destination Television Connection (Series
N)
Kt ni truyn hnh quc t IMEI International Mobile Equipment Identity (Series Q)
Nhn dng phn bit thit b thit b di ng quc t IMF International Monetary Fund (Series D)
Qu tin t quc t IMQ Instituto Italiano del Marchio de Qualit (Italy)
Vin qun l cht lng (Italia) IMSI International Mobile Station Identity (Series E, Q)
Nhn dng (phn bit) trm di ng quc t IMT International Mobile Telecommunications
Thng tin di ng quc t IMTC International Multimedia Conferencing Consortium
Consortium v hi ngh multimedia quc t IMTS Improved Mobile Telephone Service
Dch v in thoi di ng tng cng IMUX Inverse Multiplexer
B ghp knh nghch o
IN-IW
IN Intelligent Network
Mng thng minh INA Integrated Network Access
Truy nhp mng lin kt
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INA Information Networking Architecture
Kin trc ni mng thng tin INF Information Message (Series Q)
Tin bo thng tin INFO Information Element Defined at the user network interface (Series
G)
Mi trng thng tin c xc nh ti giao din ngi dng INFORMS Intergrated Forcasting Management System
H thng qun l d bo lin kt INIC ISDN Network Identification Code (Series E, X)
M nhn dng mng ISDN INMARSAT International Marine Satellite Organisation
T chc v tinh hng hi quc t INMS Integrated Network Management System
H thng qun l mng tng hp INR Information Request Message (Series Q)
Tin bo yu cu thng tin INREFS Integrated Reference System
H thng chun lin kt INTELSAT International Telecommunications Satellite Organisation
T chc v tinh thng tin quc t INTUG International Telecommunications User Group
Nhm ngi dng vin thng quc t IOC Inter Office Channel
Knh bn trong tng i, knh ni b tng i IOC Integrated Optical Circuit
Mch quang lin kt IOC Index Of Cooperation (Series T)
Ch s hp tc IODC I
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