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To transmit data between computer and electronic information devices, BSNL provides data communication services to its subscribers.  It offers a choice of high, medium and low speed leased data circuits as well as dial-up lines.  Bandwidth is available on demand in most of the cities.  Managed leased Line Network (MLLN) offers flexibility of providing circuits with speeds of n x  64 Kbps up to 2 Mbps.  Useful for internet leased lines and international principle Leased Lines (IPLCs).

For dedicated point to point speech, private wire, tele-printer and data circuits are given on lease basis.  Leased circuits are provided to subscribers for internal communication between their offices/factories at various sites within a city/town or different cities/town on point to point basis, or on a network basis interconnecting the various sites.

Managed Leased Line Service(MLLN): The MLLN is a Managed Leased Line Network system which is proposed to provide Leased line connectivity.  The State-of-the-art technology equipment MLLN is designed mainly for having effective control, monitor on the leased line so that the down time is very much minimised. Details>>

Speech Circuits (Hot Line or Private Wire) - Local or  Long distance circuits within two locations in a city or between two different cities provided for the same applicant. The Terminating equipment at both ends is telephone without dialing facility. Both way signaling and speech is possible.

Data Circuits - Local or Long distance data circuits at different speeds viz.  nx64 kbps and 2 mbps. Data Circuits are of different types:

1. Producer of goods and his whole -sale traders /agents.
2. Provider of service (not being a telecommunication service) and his whole-sale traders/agents.
3. Producers of same categories of goods.
4. Providers of the same category of service.
5. Holding company and its subsidiaries.
6. Interconnected undertakings.
7. Companies under the same management
8. Travel agents issuing tickets on the member airlines, whose network they use including the network of a group of member airlines.
9. Computerized Reservations System (CRS) service providers owned by airlines.
10. Shared networks of banks for use of Automatic Teller Machines (ATMs), Electronic Points of Sale(EPOS)/credit authorization terminals.
11. Financial institutions registered primarily to deal in securities and their agents/dealers.
12. Financial institutions registered as Mutual funds and their agents.
13. Financial institutions which are registered as depositories and their agents/dealers.
14. Other non-banking financial institutions.
    
    Remarks on Closed Users Group

• For application and details contact Commercial Officer responsible for Leased Circuits in your city.
   
• For Private Data Network and Closed User Group prior permission of BSNL is required. Customer  requiring these services may  apply to Chief General Manager of respective territorial Telecom Circle.