A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : The Multiple Appearance Feature using the Session Initiation Protocol (SIP)
Author(s) : A. Johnston, et al.
Filename : draft-johnston-bliss-mla-req-01.txt
Pages : 57
Date : 2008-02-25
This document describes the requirements and implementation of a
group telephony feature commonly known as Bridged Line Appearance
(BLA) or Multiple Line Appearance (MLA), or Shared Call/Line
Appearance (SCA). When implemented using the Session Initiation
Protocol (SIP), it is referred to as Multiple Appearances (MA) since
SIP does not have lines. This feature is commonly offered in the IP
Centrex services and IP-PBX offerings and is likely to be implemented
on SIP IP telephones and SIP feature servers used in a business
environment. This document lists requirements and compares
implementation options for this feature. Extensions to the SIP
dialog event package are proposed.
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