Title: Session Initiation Protocol (SIP) Extension Header Field for Service Route Discovery During Registration
Author(s): D. Willis, B. Hoeneisen.
Status: PROPOSED STANDARD
Date: Oct 2003
Length: 35628
This document defines a Session Initiation Protocol (SIP) extension header field used in conjunction with responses to REGISTER requests to provide a mechanism by which a registrar may inform a registering user agent (UA) of a service route that the UA may use to request outbound services from the registrar's domain.
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