Explicit Subscriptions for the REFER Method
RFC 7614, “Explicit Subscriptions for the REFER Method”, is a Proposed Standard document published in August 2015 by R. Sparks. The canonical text is published by the RFC Editor.
Abstract
The Session Initiation Protocol (SIP) REFER request, as defined by RFC 3515, triggers an implicit SIP-Specific Event Notification framework subscription. Conflating the start of the subscription with handling the REFER request makes negotiating SUBSCRIBE extensions impossible and complicates avoiding SIP dialog sharing. This document defines extensions to REFER that remove the implicit subscription and, if desired, replace it with an explicit one.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 7614 is hosted at rfc-editor.org. Available in TXT,HTML.
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