The Session Initiation Protocol (SIP) "Replaces" Header
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From: The IESG <email@example.com> To: IETF-Announce <firstname.lastname@example.org> Cc: Internet Architecture Board <email@example.com>, RFC Editor <firstname.lastname@example.org>, sip mailing list <email@example.com>, sip chair <firstname.lastname@example.org> Subject: Protocol Action: 'The Session Inititation Protocol (SIP) 'Replaces' Header' to Proposed Standard The IESG has approved the following document: - 'The Session Inititation Protocol (SIP) 'Replaces' Header ' <draft-ietf-sip-replaces-06.txt> as a Proposed Standard This document is the product of the Session Initiation Protocol Working Group. The IESG contact persons are Allison Mankin and Jon Peterson. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-sip-replaces-06.txt
Technical Summary This document defines a new header for use with SIP multi-party applications and call control. The Replaces header is used to logically replace an existing SIP dialog with a new SIP dialog. This primitive can be used to enable a variety of features, for example: "Attended Transfer" and "Call Pickup". Note that definition of these example features is non-normative. Security considerations for this Header include strong recommendation of use of the Authenticated Identity Body and the Referred-by mechanism use of it in authorization approaches. Working Group Summary The working group supported advancement of this document because of strong support for the enabling of distributed call control feature development. Protocol Quality The document was reviewed for the IESG by Allison Mankin and mid-course security reviewing was provided by Eric Rescorla. RFC Editor Note Please substute for all occurences of billybiggs.com -> billybiggs.example.com Please replace the following sentence in Section 4: OLD: Likewise in a call center environment, each call center agent could possess credentials which supervisors also have access to. NEW: Likewise in a call center environment, supervisors could have access to the credentials of each call center agent.