Accessing IN services from SIP networks

Document Type Expired Internet-Draft (individual)
Last updated 2001-09-06
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


In Internet telephony, the call control functions of a traditional circuit switch are replaced by a IP-based call controller that must provide features normally provided by the traditional switch, including operating as a SSP for IN features. A traditional switch is armed with an IN call model that provides it a means to reach out and make service decisions based on intelligence stored elsewhere. Internet call controllers, by contrast, do not have an IN call model.


Vijay Gurbani (
Vidhi Rastogi (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)