1. Telecom Revenue Audit Slide 6.2

2. Customer Services Slide 6.2 Quality of service (QoS) QoS parameters prescribed by Trai : Provision of telephone after Registration of demand Fault Reporting Exchange parameters Operator Assisted Trunk Cals Operator Assisted Service Metering & Billing Credibility Customer care

3. Telephone Revenue Billing & Accounting Slide 6.2 Services provided by MTNL fall under 4 groups : Basic Telephone (Landline) Wireless in Local Loop – WLL Mobile (Garuda) Cellular Mobile (Dolphin and Trump) Telex Circuits (Leased) Annual Revenue (2001-02) ServiceRs. in crorePercentage Telephone550174.23 WLL1081.46 Cellular mobile75010.12 Telex971.31 Circuits95512.89 Total7411100.00

4. Billing & Accounting System Slide 6.2 Carried out through Customer Services Management System (CSMS) The system has the following five modules : Pre connection module Post connection module Billing module Collection module Accounting module

5. Audit of Telephone Exchanges Slide 6.2