Private Integrated Services Network (PISN)
- Inter-Exchange Signalling Protocol - Wireless Terminal Authentication
Supplementary Services (QSIG-WTMAU)
2nd edition (December 2001)
This Standard specifies the signalling protocol for the support
of the Wireless Terminal Authentication supplementary services
(SS-WTAT and SS-WTAN) at the Q reference point between Private
Integrated services Network eXchanges (PINXs) connected together
within a Private Integrated Services Network (PISN).
Authentication of a WTM user (SS-WTAT) is a supplementary service
that enables a PISN, as a security measure, to validate the identity
provided by the WTM user.
Authentication of the PISN (SS-WTAN) is a supplementary service
that enables a served WTM user, as a security measure, to validate
the identity of the PISN.
The mechanisms used in these services are based on the challenge
and response method of authentication.
Authentication algorithms to be used by these supplementary services
are outside the scope of this Standard.
The Q reference point is defined in ECMA-133.
Service specifications are produced in three stages and according
to the method specified in ITU-T Rec. I.130.
This Standard contains the stage 3 specification for the Q reference
point and satisfies the requirements identified by the stage 1
and stage 2 specifications in ECMA-305.
The signalling protocol for SS-WTAT and SS-WTAN uses certain
aspects of the generic procedures for the control of supplementary
services specified in ECMA-165.
This Standard also specifies additional signalling protocol requirements
for the support of interactions at the Q reference point between
SS-WTAT / SS-WTAN and other supplementary services and ANFs.
This Standard is applicable to PINXs which can interconnect to
form a PISN.
The protocol defined in this Standard forms part of the PSS1
protocol (informally known as QSIG).
The following file can be freely downloaded:
||Acrobat (r) PDF file
This Ecma publication is also approved as ISO/IEC 15433.
The previous replaced "historical" edition of this Ecma Standard is available here.