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SIP for Click-To-Dial-Back and Third-Party Control

Document Type Expired Internet-Draft (pint WG)
Expired & archived
Author Henning Schulzrinne
Last updated 1997-11-24
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


SIP can also be used to control calls established by other entities, for example, to have a computer control a PBX or a web server ask an SCP to initiate a call to a standard telephone (''click-to-dial- back''). We refer to the entity initiating the phone call as the controller and the PBX or SCP as the PSTN server.


Henning Schulzrinne

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