A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Session Initiation Proposal Investigation Working Group of the IETF.
Title : Interworking between SIP and QSIG
Author(s) : J. Elwell, et. al.
Filename : draft-ietf-sipping-qsig2sip-03.txt
Pages : 59
Date : 2003-10-16
This document specifies interworking between the Session Initiation
Protocol (SIP) and QSIG within corporate telecommunication networks
(also known as enterprise networks). SIP is an Internet application-
layer control (signalling) protocol for creating, modifying, and
terminating sessions with one or more participants. These sessions
include, in particular, telephone calls. QSIG is a signalling
protocol for creating, modifying and terminating circuit-switched
calls, in particular telephone calls, within Private Integrated
Services Networks (PISNs). QSIG is specified in a number of ECMA
Standards and published also as ISO/IEC standards.
network and a participant in the QSIG network. Such calls are
supported by gateways that perform interworking between SIP and QSIG.
This document is a product of the authors' activities in ECMA
(www.ecma-international.org) on interoperability of QSIG with IP
networks. An earlier version is published as Standard ECMA-339. ECMA
has made this work available to the IETF as the basis for publishing
an RFC.
As the support of telephony within corporate networks evolves from
circuit-switched technology to Internet technology, the two
technologies will co-exist in many networks for a period, perhaps
several years. Therefore there is a need to be able to establish,
modify and terminate sessions involving a participant in the SIP
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