From: The IESG To: IETF-Announce Message-Id: Date: Tue, 26 Apr 2005 15:29:22 -0400 Subject: Protocol Action: 'An INVITE Inititiated Dialog Event Package for the Session Initiation Protocol (SIP)' to Proposed Standard The IESG has approved the following document: - 'An INVITE Inititiated Dialog Event Package for the Session Initiation Protocol (SIP) ' as a Proposed Standard This document is the product of the Session Initiation Proposal Investigation Working Group. The IESG contact persons are Allison Mankin and Jon Peterson. Technical Summary This document defines a dialog event package for the SIP Events architecture, along with a data format used in notifications for this package. The dialog package allows users to subscribe to another user, and receive notifications about the changes in state of INVITE initiated dialog usages that the user is involved in. Working Group Summary The document is a product of the SIPPING working group and was developed over the course of about three years. The SIP community wanted a way to implement applications which are commonly found in the PSTN such as single-line-extension or automatic callback. The WG was finally able to design a general mechanism that allows devices to become aware of the state of another device. The working group demonstrated strong consensus to deliver a standard solution to this problem, and rough-consensus and no strong objections to the specific approach. Protocol Quality This document was shepherded for the IESG under the PROTO method by Gonzalo Camarillo, co-chair of the SIPPING working group. RFC Editor Note: [correcting text error and spelling] Section 1 OLD: When A picks it up, they here ringing, and are being connected to B. To implement this with SIP, a mechanism is required for B to receive a notification when the dialogs at A are complete. NEW: When A picks it up, they hear ringing, and are being connected to B. To implement this with SIP, a mechanism is required for A to receive a notification when the dialogs at B are complete.