Technical Report TR/81
Interoperation of PISNs with IP Networks
The purpose of this Technical Report is to investigate the interoperability
of Private Integrated Services Networks (PISNs) and Internet Protocol
(IP) networks, with a view to identifying possible scenarios for
interoperation, problems that will have to be solved if particular
scenarios are to be pursued further, and possible future standardization
activities in this area. In particular, the following aspects
of interoperability are investigated:
- the interworking of PISNs and IP networks via a gateway;
- the connection of PISN components via IP networks.
For each of the above, aspects considered include architecture,
addressing (including use of IP addressing), services, protocols,
security, quality of service and mobility. This is conducted within
the context of leading standards for voice and multimedia communication
over IP networks, including ITU-T recommendation H.323, IETF Session
Initiation Protocol (SIP) and ITU-T recommendation H.248.
Possible future standardization activities resulting from this
Technical Report can include work items relating to IP networks
and work items relating to PISNs, as well as work items concerned
specifically with interoperability.
The dominant traffic in PISNs is voice, and therefore this Technical
Report focuses on interoperability considerations for voice traffic.
However, many of the standards that support voice in an IP network
are also applicable to multi-media traffic (e.g., voice, video
and data). Although in many respects similar to voice, fax traffic
has slightly different requirements and is not explicitly considered
in this Technical Report. It could be the subject of further study.
The following file can be freely downloaded:
||Acrobat (r) PDF file
This Ecma publication is also approved as ISO/IEC TR 21890.