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IETF Drafts

Remote Call Control and Call Pick-up in SIP

This memo defines a mechanism by which a SIP user agent could inspect calls at another user agent, and control a call, including picking up for itself.

A Session Initiation Protocol (SIP) INFO package for Private Wire

Application level data exchanged using the SIP INFO method are supported and documented in specifications known as ‘INFO Packages’. This document defines functionality associated with Session Initiation Protocol (SIP) Private Wire functionality and creates an ‘INFO Package’ for carrying such application level data.

A Session Initiation Protocol (SIP) usage for Trickle ICE

The Interactive Connectivity Establishment (ICE) protocol describes a Network Address Translator (NAT) traversal mechanism for UDP-based multimedia sessions established with the Offer/Answer model. The ICE extension for Incremental Provisioning of Candidates (Trickle ICE) defines a mechanism that allows ICE agents to shorten session establishment delays by making the candidate gathering and connectivity checking phases of ICE non-blocking and by executing them in parallel. This document defines usage semantics for Trickle ICE with the Session Initiation Protocol (SIP).