ISO IEC 15050 pdf download

ISO IEC 15050 pdf download Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Advice Of Charge supplementary services
1Scope
This International Standard specifies the signalling protocol for the support of the Advice Of Charge supplementary services(SS-AOC) at the Q reference point between Private Integrated services Network eXchanges (PINX) connected together withina Private Integrated Services Network (PISN).
SS-AOC is a set of supplementary services which enable a user to receive information about the charging of its calls that leavethe PISN and enter another network.
The three AOC supplementary services are:
a) Charging information at call set-up time (AOC-S)
SS-AOC-S enables the user to receive information about the charging rates at call set-up time and also to receive furtherinformation during the call if there is a change of charging rates.
b)Charging information during the call (AOC-D)
SS-AOC-D enables a user to receive information on the recorded charges for a call during the active phase of the call.
c) Charging information at the end of the call (AOC-E)
SS-AOC-E enables a user to receive information on the recorded charges for a call when the call is terminated.
The Q reference point is defined in ISO/IEC 11579-1.
Service specifications are produced in three stages and according to the method specified in ETS 300 387.This InternationalStandard contains the stage 3 specification for the Q reference point and satisfies the requirements identified by the stage I andstage 2 specifications in ISO/IEC 15049.
The signalling protocol for SS-AOC operates on top of the signalling protocol for basic circuit switched call control, asspecified in ISOIEC 11572, and uses certain aspects of the generic procedures for the control of supplementary servicesspecified in ISO/IEC 11582.
This International Standard also specifies additional signalling protocol requirements for the support of interactions at the Qreference point between SS-AOC and other supplementary services and ANFs.
NOTE – Additional interactions that have no impact on the signallig protocol at the Q reference point can be found in the relevantstage 1specifications.
This International Standard is applicable to PINXs which can interconnect to form a PISN.2Conformance
ln order to conform to this International Standard，a PINX shall satisfy the requirements identified in the ProtocolImplementation Conformance Statement (PICS) proforma in annex A.
Conformance to this International Standard includes conforming to those clauses that specify protocol interactions betweenSS-AOC and other supplementary services and ANFs for which signalling protocols at the Q reference point are supported inaccordance with the stage 3 standards concerned.
3Normative references
The following referenced documents are indispensable for the application of this document. For dated references,only theedition cited applies. For undated references, the latest edition of the referenced document (including any amendments)applies.