Bangalore Telecom........

Telecom Network.........

Bangalore Telecom System is the fifth largest Telecom System in India after Mumbai, Delhi, Calcutta and Chennai serving a total population of 6.5million spread over an area of 8000 sq.kms.
The status of the Telephone Network as on 1st JULY 2000 is:

• Total No. of large exchanges - 40
• Total No. of medium & small exchanges - 117
• Total equipped capacity (lines) - 8,07,903
• Total No. of telephone lines - 6,88,892
• Total No. ISDN lines - 1,812
• Applicants waiting for telephone - 32,051
• Total No. of STD PCOs - 12,728
• Total No. of data circuits (64 Kbps) - 688
• Total No. of data circuits (2 Mbps) - 206

All the switches in the network are digital. All the major exchanges in the network are interconnected by highly reliable OPTICAL FIBRE systems, DIGITAL MICROWAVE systems, UHF and cable PCM systems. All the new technology switches in the network are connected through CCS # 7 Signaling. Bangalore Rural is provided with 100% Electronic Exchanges. All the Exchanges in Bangalore Rural are provided with STD/ISD/ (Direct Dialing or toll) facilities.
The toll (STD/ISD) services are provided by a large capacity Digital Trunk Automatic Exchange capable of handling upto one million calls in an hour. This Trunk Automatic Exchange links nearby towns and villages and all the District Headquarters of Karnataka State to the National Network. To handle international calls, this switch is directly connected to the International Gateway Switch of Videsh Sanchar Nigam Limited at Mumbai and Chennai. It also acts as a Gateway to Mobile Telephone Network and Paging Network operated by Service Providers in Bangalore.

Manual trunk calls are handled by a Computerised System.
Telex Service is provided by an Electronic Digital Exchange called EDX. The telex subscriber can make inland telex calls to about 240 cities in the country. The access to international telex network is provided via GATEX of Videsh Sanchar Nigam Ltd., and to some of the neighbouring countries via the Zonal centres.
Inet is India’s X.25 based Packet Switched Public Data Network to provide high speed data connectivity. The Inet node at Bangalore caters to the demand of Bangalore, nearby towns/villages and other districts of Karnataka. The network has spanned to about 98 Cities in the country and has connectivity to Data Networks abroad. Inet is also connected to other public Data Networks of Department of Telecommunications - Remote Area Business Message Network (RABMN) and High speed VSAT network (HVNET). Connectivity is also provided to Public Switched Telephone Network (PSTN) and the ISDN network.

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