The Continue Header Field for the Session Initiation Protocol (SIP)

Document Type Expired Internet-Draft (individual)
Last updated 2012-10-04 (latest revision 2012-04-02)
Stream (None)
Intended RFC status (None)
Expired & archived
plain text pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Before placing a call, it is quite often useful for the Caller to know whether a Callee is in favorable state to receive a call or not. This document defines an optional tag "continue" and a header "Continue" to address the purpose. The "Continue" header field is to confirm the session continuity with the Callee from the Caller after an option for session continuity is placed by the Callee based on the unfavorable state of the Callee. This functionality is needed to resolve the unwillingness of the Callee to receive any call. An option is given to the Callee by the Service Provider or by the Handset Manufacturer or by the Carrier to establish this requirement.


Amardeep Sinha (
Subhrajyoti De (
Sunil Sinha (

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