Speech Circuits (Hot Line or P-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. 2400 bps, 4800 bps, 9600 bps, 64 kbps, nx64 kbps and 2 mbps. Data Circuits are of different types:
 Point to Point Data Circuits - Local and Long Distance 
 Private Data Network - More than one Local or Long Distance leased circuits converging on a location such that data from one leased circuit can be transferred automatically to another leased circuit for the same subscriber. 
 Closed User Group - Leased circuits can be used by more than one legal entity if they form closed user group. The following categories of user groups constitute closed user groups for the purpose of licensing Private Telecom Networks.

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.

 Provided that ultimate consumer of the product or service shall not be a part of the closed user group and also that the network will be used purely for legitimate internal communication purposes of the group where resale of telecommunication service and its profits are not involved. In respect of companies against 5 , 6 and 7 above, the definitions available in MRTP Act 1969 will be taken.
 Telegraph Circuits - Local and Long distance Tele-printer Circuits. 
 International Leased Circuits: Provided through VSNL.