Training Presentationof

Six Weeks Industrial Trainingin

INTELLIGENT NETWORK (IN)@

Idea Cellular Ltd., Mohali

Keshav Sharma09ELDECO55ECE 7th Sem.

Company Profile• IDEA Cellular is a leading GSM mobile service operator with a

customer base of over 63.82 million in 22 service areas.• IDEA provides basic voice & Short Message Service (SMS) services to

high-end value added services such as Mobile TV, Games.• IDEA was the first to launch GPRS and EDGE in India.• IDEA offers seamless coverage to roaming customers traveling to any

part of the country, as well as to international traveling customers across over 200 countries having partnership with over 400 operators worldwide

• IDEA Cellular is part of the Aditya Birla Group, India's first truly multinational corporation. The group operates in 25 countries, and is anchored by over 1,25,000 employees belonging to 25 nationalities.

Established Service Areas • The established service areas are Delhi, Punjab, Andhra Pradesh,

Gujarat, Maharashtra, Haryana, Kerala, Madhya Pradesh and Uttar Pradesh (West).

• The New Service Areas are Uttar Pradesh (East), Rajasthan, Himachal Pradesh, Bihar, Mumbai, Karnataka, Orissa, Tamil Nadu, Jammu & Chennai

• Brand Idea was launched in Punjab and Karnataka, through the acquisition of Spice Communications.

VAS Partners

Network Partners

What is IN?

• IN department is basically a network which is used to charge the customer for the services provided to them by service provider (IDEA Cellular). In IN department basically prepaid customers are handled

• In IN department different prepaid plans are implemented and also recharge coupons or bucks are created

• An intelligent network (IN) is a service - independent telecommunications network.

• An Intelligent Network consist SCP (Signaling Control Points) through which all call traffic passes they are important part of this network. All calls passes through IN so that there should be proper charging to customer according to there services (Brand-Tariff).

Online Charging System (Intelligent Network) MSC/VLR (GSM SSF)

Call originating

SCF:- Service control Function is a standard component of an intelligent network (IN) telephone system which is used to control the service. 

HLR :- Home Location Register is the node in the IN GSM which is responsible for providing subscriber information. A GSM network element that needs information about subscriber will interrogate the HLR about such information.

MSC:- Mobile switching center

At Idea Head Office Mohali, they have IN of three Circles: 1. Punjab2. HP3. Jammu

45

GSM SCF HLR

12

3

4

5Service Switching Function (SSF): The SSF is responsible for entertaining calls requiring value added services.

Complete Call Setup With CAMEL Invoked By Both Parties

HLR

GMSCB

VMSCB

VMSCA

VLRA

SETUP 1234

1

ISUP

Initial DP 1234CONNECT 01654 4567892

3

4

GSM SCFGSM SCF

SRI Ack6

5Send Routing

Info

Initial DP CONTINUE

87

ISUP

PRN Ack

11

10Provide Roaming Number

9

SETUP

14

12

13

SSFSSF

VLRB

BA

CALL FLOW AT IN

SIUFrom MSC

OCS

Diameter Server

SCP

Objectives of Work assigned

1. Understanding the Basics of IN (Intelligent Network).2. Gain the Knowledge and access to Various Servers Used.3. Complaint handling.4. Reports preparation.5. Alarm Checking.6. Evening BHCA messages.7. Backup of VOMS and OCS.8. Voucher (Buck) Creation.9. Daily morning and evening Tests.10. Weekly Call Testing.11. Night activities: Refreshing system, monthly data, upgrading

System, Migration of customers from one tariff to other, Activating new codes and Features and their testing, Expansion of OCS, Migration of customers to new OCS.

Complaint HandlingTypes of complaints:1. BOS(Balance on Screen)2. Buck Discrepancy

BOS Complaints came from the customers who are unable to receive the balance flash message after disconnecting their call. We have to trigger their AOC in Zsmart.

Buck discrepancy are those cases when a customer is not able to make a buck recharge. In those cases we query their buck using the Buck serial number in Voucher centre.

Reports PreparationThere we make 5 Reports:1. IN Utilization Report2. IP States Report3. NPAR Report4. Preventive Maintenance Report5. Failure Vtopup Report6. MAPA Report

IN Utilization Report

NPAR Report

Preventive Maintenance Report

Failure Vtopup Report

IN MAPA Report

Other Works to be done on VC1. Delete card2. Drop Card3. Query card4. Batch change valid period5. Batch change locked state6. Change card property7. Issue card through file8. Change card property through file9. Card par value configuration10. Card type configuration11. Statistics of card state12. Statistics of Recharge13. Statistics of service

Daily Morning & Evening Tests

1. Balance Enquiry using *771#

2. Last call charged using *775#

3. Off Peak minutes using *776#

4. Recharge through IVR(888) and USSD(*888*code #)

5. BOS message

6. Customer without tariff

7. FNF Service activate and deactivate Status(777)

8. Checking STK code.

To ensure that all the Services provided to Prepaid Customers are working we have a Series of Test which are done every evening. These are the following:-

Projects at IDEA:1. Smart Act Process.2. Decimal Charging.3. Migration of Customers from old OCS to new OCS4. Addition of SIU and SCPs

• Smart Act became Live for customers on 16th November 2011 and modified on 7th Feb 2012.

• IN Smart Act process customer become active when dials first call and gets Life long validity.

• Earlier IT dept. send commands to IN for lifelong validity and creation of customer.

• Decimal Charging became live for customers on 5th March 2011.• Now an IDEA customer will see the balance in three decimal places.• Earlier the balance was like 20.07 but now it will be like 20.070.

• Migration of Customers was done in May 2011 from old OCS to new OCS to decrease the load of old OCS.

• Customers of 8437 and 9781 series were migrated.

• Addition of SIU and SCPs was done in month of May due to Increase in number of customers and number of calls.

• One SIU and 4 new SCPs were added and load was given to them in June.

Customer Life Cycle

• N0 State (Inactive): When a number is created in N0 state.

• N1 State (Activing): After call in N0 state its state changes to N1.

• N2 State (Active): In N1 after recharge state of number changes to active state.

• N4 State (Two-way-block): During grace period, a subscriber will be in N4 state.

• N5 State (Termination): When a Subscriber is deleted from IN, its state changes to N5.

IN MembersRama Sharma (Sr. Manager IN)Bimaljot Kaur (Manager IN)Manoj Jhamb (Sr. Engineer IN)Hardeep Singh (Sr. Engineer IN)Shivam Kapoor (Engineer IN)Bhrigu Joshi (Executive Trainee)

Engineering Department

Planning

Engineering Front Desk

(EFD)

N/W Switching System (NSS)

Base Station System (BSS)

Operations and Maintenance

for Radio (OMC-R)

Performance

Intelligent Network (IN)

Thanks for your time !