Suppression of Session Initiation Protocol REFER Method Implicit Subscription
RFC 4488, “Suppression of Session Initiation Protocol REFER Method Implicit Subscription”, is a Proposed Standard document published in May 2006 by O. Levin. The canonical text is published by the RFC Editor.
Abstract
The Session Initiation Protocol (SIP) REFER extension as defined in RFC 3515 automatically establishes a typically short-lived event subscription used to notify the party sending a REFER request about the receiver's status in executing the transaction requested by the REFER. These notifications are not needed in all cases. This specification provides a way to prevent the automatic establishment of an event subscription and subsequent notifications using a new SIP extension header field that may be included in a REFER request. [STANDARDS-TRACK]
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 4488 is hosted at rfc-editor.org. Available in TXT,HTML.
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