| Telecom Network of Indian Railways (As on 31.03.1999 and 01.03.2000) | ||
| Installation | As on 31.03.1999 | As on 31.03.2000 |
| Digital Electronic Exchanges (No. of Lines) | ||
| No. of Locations Provided with Dual Tone | ||
| Multiple Frequency (DTMF) Control Equipment | ||
| Digital Microwave (7 GHz) (Route Kms.) | ||
| Control Communication through Wireless (18 GHz) (Route Kms.) | ||
| Optical Fibre Cable Communication (OFC) System for Control | ||
| Communication (Route Kms.) | ||
| Microprocessor-based Public Address System (No. of Stations) | ||
| Electronic Train Indication Boards (No. of Stations) | ||
| Interactive Voice Response System for Train Enquiry/reservation Status (No. of Stations) | ||
