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File formats:

Status:

BEST CURRENT PRACTICE

Authors:

R. Sparks
A. Johnston, Ed.
D. Petrie

Stream:

IETF

Source:

NON WORKING GROUP

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DOI:  https://doi.org/10.17487/RFC5589

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Abstract

This document describes providing Call Transfer capabilities in theSession Initiation Protocol (SIP). SIP extensions such as REFER andReplaces are used to provide a number of transfer services includingblind transfer, consultative transfer, and attended transfer. Thiswork is part of the SIP multiparty call control framework. This document specifies an Internet Best Current Practices for theInternet Community, and requests discussion and suggestions forimprovements.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.