Petros SarantopoulosCarrier Networks Control

SIEMENS GREECE

VoIP trends in Fixed Network Operators

Agenda

Standardization MSFORUM / ETSI TISPAN

Towards Class-5 VoIP

Future trends

ETSI NGN – Overview Standardization Activities

The ETSI TISPAN working group started to work on the NGN Architecture in December 2003:

TISPAN = Telecommunications and Internet converged Services and Protocols for Advanced Networking

Focus on enhancing the IMS 3GPP for fixed line access

Will (some want) for PSTN / ISDN Replacement

Support of Advanced Multimedia Services

TISPAN Release 1: 2nd half 2005 - based on 3GPP IMS release 6

3GPP and ETSI – Common NGN Architecture

ETSIIETF

SIP

2H/2005

IMS

SIP

3GPP

IMS

SIP

mobile fixed

Rel 5.Rel 6.

NGN Standards: MSF Architecture Release 2, TISPAN NGN

Target of TISPAN NGN architecture:New end-user services for SIP users independent of access method

Converged Address Book

Push and Talk, IM* and Chat

Converged CentrexServices

Video Telephony and Entertainment

Dual Mode Handsets

Voice over IP

Seamless services between fixed and mobile users will be the key for operators to gain an edge over competitors.

...

...

* IM Instant Messaging

Exploiting synergies with a converged infrastructure based on IMS

…Authentication

Specific Billing

Specific database & integration

per application

Specific O&M

Authentication

Specific Billing

Specific database & integration

per application

Specific O&M

Single sign-on

One Billing

Common network integration & global user database

Common O&M

…

Separated mobile and fixed domains

Today: - repeated vertical integration- replication of functions- lack of correlations- no synergies

Common application and session control layers

IMS: one-time integration

Application 1 … n Application 1 … n

One single network architecture for FMC supports operators to reduce their total cost of ownership.

FMC network architecture –common connectivity for all types of subscribers

CSCF

PLMN

PSTN

Fixed IP ClientsMobile IP Clients

R-MGF

MGCF

PresenceMessaging

Applications

Legacy Interworking

IP Multimedia Subsystem (IMS) - Session control

SubscribersCSCF: Call Session Control Function

HSS: Home Subscriber Server

MGCF: Media Gateway Control Function

A-MGF: Access Media Gateway Function

T-MGF: Trunk Media Gateway Function

R-MGF: Remote Media GW Function

IP phone POTS/ISDN

Fixed TDM Clients

PBX

POTS/ISDN

A-MGF

HSS T-MGF

Starting today with existing applications (e.g. fixed VoIP, Mobile data IMS services) and moving to standardized fixed-mobile applications

IP domain TDM domain

Push and Talk

Chat

Hosted OfficeCentrex

Residential VoIP

Home Entertainment

Agenda

Standardization MSFORUM / ETSI TISPAN

Towards Class-5 VoIP

Future trends

VoIP evolution path

Field proven VoIP applicationsClass 4 VoIP networksVoIP over Cable networks following (Euro) PacketCable standardsVoice over Broadband (2nd line service with reduced features)

New VoIP application cases gaining popularity: Class 5 VoIP networks via 2 alternative methods

EMULATION: H.248 / V5.2 VoIP centralized Access gateways (with/without ADSL/GPON) for VoIP Class-5 without changing end-user equipment

SIMULATION: SIP Endpoints for “enhanced-Voice over Broadband” / FMC scenarios via any access (ADSL, WiMAX etc)

Drivers towards Class-5 in VoIP

Commercial driversCarriers focus again on the neglected residential segment for universal service obligation or advanced servicesOutdated access voice equipment / poor local loop status in some carriersLocal loop competition , VoIP usage beyond cheap transport for long-distance Metro Ethernet and IP/MPLS networks available / planned in most carriers

Technical enablersAccess gateways for VoIP Class 5 without changing end user equipment: Metropolitan and Rural scenarios.SIP Endpoints for “Voice over Broadband” / FMC scenarios. Multimode SIP terminals (DSL, WiFi, VoIP, WiMAX, GSM/UMTS combinations) for mass market expected by terminal vendors.Session Border Controllers for securitySIP Application Servers (ISC interface to IMS S-CSCF)

Video

OLT

OLT-V

SwitchTrunk Gateway

H.248

H.248/MGCP

SoftSwitch

VoIP

1.25G-2.5 G

622 M/1.25G/2.5G

VoIP (H.248)

DS1/E1 // Leased Lines

Application case: VoIP capable GPON/DSL Solution

SFU-ONT

MDU-ONU FTTC-ONU

4x POTS1x10/100 BaseT

1xCATV

12 V

SBU/MTU-ONT

24xPOTS24xVDSL2

12x10/100 BaseT1x CATV(Power feed)

ONT/ONU

8xPOTS1(4) x10/100 BaseT

1xRF CATV

1 (4) xDS1/E1

N x GigE/10GigE // opt. POSPassive

OpticalSplitter

WDM Module

Optical Amplifier Module

Management

Remote VoIP line units (Access Gateways)

for 8-160 subscribers per village with:

Satellite feed

H.248 Softswitch control

Application case: Rural coverage via Class-5 VoIPBrazil: Telemar

Telemar: Incumbent Operator in BrazilRequirement/ Motivation:

Voice service for rural areas(Legal obligation to keep license) Class 5 connection of rural areas

1.900 Remote Line Units (RLU) 90.000 Voice ports

Carrier IPBackbone

xDSLCable TV

POTS PhoneVoIP

adapterBroad-bandModem (*)

Softswitch VoIP platform

Application case: Enhanced Consumer VoIP over broadband (xDSL, HFC)

STP

PSTNSS7

Trunk VoIPgateway

SIP, NCS/MGCPTGCP/MGCP, H.248

(*) Modem could include VoIP adapter (1-box solution): eMTA (Cable), IAD (ADSL)

+ Lawful Interception+ Number portability+Emergency call routing+ supplementary services

WiMAX Base Station

Data WiMAX CPE (*)

Radio

Access Network

Application case: VoIP Solution with WiMAX

TrunkGW

SIP Voice Application

Server

MGCF,SGW

SIP

H.248/

MGCPATA

E1/STM-1

B-RAS

PSTN/PLMN

Internet

L2 Metro Ethernet SS7

(*) : Assumes non-integrated VoIP in CPE IP/MPLS

Backbone

Signalling Path (in Red) : Access and Trunk using VoIPVoice Bearer Path (in Blue) : Example of WiMAX VoIP call to PSTN

GbE

Voice

Parameters for the optimal solution for Class-5

ServicesOperations as ILEC, CLEC, Mobile, Cable, ISP IMS / Fixed Mobile Convergence applicabilityRegulatory framework (e.g. Lifeline support, Lawful interception, LLU conditions)Existing TDM Class-5 services support , 1st or 2nd line serviceMultimedia services support

Network statusOutside plant statusNetwork size, Application case for Rural or MetropolitanPlanned DSL penetration

Application caseCAPEX (full chain: subscriber, exchange, cabling, transmission)OPEX, Management simplicityVoIP terminal availability, price, lifecycle, mass market considerations Interoperability and vendor independence, Standardization progress

Agenda

Standardization MSFORUM / ETSI TISPAN

Towards Class-5 VoIP

Future trends

Time

Revenue

Smart Home services will be one of the most significant services to

boost profitsDeclining voice

revenues

Beyond VoIP@Home: Addressing new customer demands with attractive new applications

Video Communication

HealthcareServices

HomeControl

HomeSecurity

…Home Entertainment

Example: Unified user experience for Home Control

Smart Home on TV (Set Top Box) Smart Home on

Mobile Phone

Smart Home on Internet

Evolution towards Smart Home services

At HomeRemote via WEB

On the Move

AppliancesSafety & security

HVAC&ECA Lighting,

shutters & blinds

Health Care

Entertaiment

GatewayDECT WLAN

Tele-communicati

on

Smart Home

AppliancesSafety & security

HVAC&ECA Lighting,

shutters & blinds

HealthcareEntertainment

GatewayDECT WLAN

Tele-communication

Smart Home