An Architecture and Protocols for Initiation and Control of Telephone Calls From Terminals Connected to a CallBroker over a TCP/IP Connection
draft-burg-pint-framework-00

Abstract

This Internet Draft describes a framework, consistent with the model defined in the PINT group in the IETF, for controlling voice and voice-band data (e.g., FAX) calls on the PSTN from an IP Client. As such, it is solely concerned with call control and associated functions. It is not concerned with how to convert packetized voice into a form suitable for carriage over the PSTN. We introduce a logical entity (called CallBroker) that initiates and manages calls on the PSTN and controls the session on behalf of an IP Client to establish a telephone connection between two or more end points specified by the customer (i.e., IP Client). By way of this session, as mediated by the Call Broker, the customer can set up calls and receive notifications regarding the status of the calls and its participants. The interface between the CallBroker and the Service Control Function (as defined in the work on Intelligent Network Standards in ITU-T) in the Service Node (SN) in the PSTN will be defined and standardized as part of this activity. The interface between the IP client and the CallBroker also nees to be defined and standardized as part of this activity. This Internet Draft further advances the discussion on the issues involved in interconnecting the Internet and the Public Switched Telephone Networks (PSTNs), focusing on potential interfaces between Internet-based entities and Intelligent Network (I.N.) entities. The services identified and discussed earlier (e.g., Click-to-Dial, Click-to-FAX, etc.) can be provided using the architecture identified here.

Authors

Tony DeSimone
Kamlesh T. Tewani
Fred Burg
Raj Vishwanathan

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