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Status:

PROPOSED STANDARD

Author:

O. Levin

Stream:

IETF

Source:

sip (rai)

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DOI:  https://doi.org/10.17487/RFC4488

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Abstract

The Session Initiation Protocol (SIP) REFER extension as defined inRFC 3515 automatically establishes a typically short-lived eventsubscription used to notify the party sending a REFER request aboutthe receiver's status in executing the transaction requested by theREFER. These notifications are not needed in all cases. Thisspecification provides a way to prevent the automatic establishmentof an event subscription and subsequent notifications using a newSIP extension header field that may be included in a REFER request. [STANDARDS-TRACK]

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.