| Abstract
|
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.
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
Elwell et alia Expires - April 2003 [Page 1]
Interworking between SIP and QSIG October 2002
network and a participant in the QSIG network. Such calls are
supported by gateways that perform interworking between SIP and QSIG.
|
