Private Integrated Services Network (PISN)
- Mapping Functions for the Tunnelling of QSIG through IP Networks
This Standard specifies functions for using a packet network
that uses the Internet Protocol (IP) as its network layer protocol
and UDP and TCP as its transport layer protocols, to interconnect
two Private Integrated services Network eXchanges (PINXs) forming
part of a Private Integrated Services Network (PISN). Interconnection
is achieved by carrying the inter-PINX signalling protocol directly
over the Transmission Control Protocol (TCP) and inter-PINX user
information (e.g., voice) over the Real-time Transport Protocol
(RTP), RTP being carried over the User Datagram Protocol (UDP).
The inter-PINX signalling protocol is assumed to be QSIG, as specified
in ECMA-143, ECMA-165
and other standards.
The Standard provides for two types of interconnection:
on-demand, where a separate TCP connection for QSIG is established
at the start of each call and cleared down at the end of that
semi-permanent, where a single TCP connection with an indefinite
lifetime carries QSIG on behalf of many single calls.
This Standard is applicable to PINXs that can be interconnected
to form a PISN using QSIG as the inter-PINX signalling protocol.
The following file can be freely downloaded:
||Acrobat (r) PDF file
This Ecma publication is also approved as ISO/IEC 21992.