| Publication CODE |
Title |
| ISO/IEC 15992:2003 (2003-03) |
INFORMATION TECHNOLOGY -- TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS -- PRIVATE INTEGRATED SERVICES NETWORK -- INTER-EXCHANGE SIGNALLING PROTOCOL -- CALL PRIORITY INTERRUPTION AND CALL PRIORITY INTERRUPTION PROTECTION SUPPLEMENTARY SERVICES |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
183.00 €
|
37. |
Description
ISO/IEC 15992:2003 specifies the signalling protocol for the support of the Call Priority Interruption (SS-CPI) and Call Priority Interruption Protection (SS-CPIP) supplementary services at the Q reference point between Private Integrated services Network eXchanges (PINXs) connected together within a Private Integrated Services Network (PISN).
NOTE This edition of ISO/IEC 15992:2003 does not apply to calls using the circuit-mode multiple rate bearer service.
SS-CPI allows a call request for a priority call to proceed successfully in the case that there is no user information channel available. This is accomplished by force releasing an established call of lower priority.
SS-CPIP allows for the protection of calls against interruption from priority calls.
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. ISO/IEC 15992:2003 contains the stage 3 specification for the Q reference point and satisfies the requirements identified by the stage 1 and stage 2 specifications in ISO/IEC 15991.
The signalling protocol for SS-CPI(P) operates on top of the signalling protocol for basic circuit switched call control, as specified in ISO/IEC 11572, and uses certain aspects of the generic procedures for the control of supplementary services specified in ISO/IEC 11582.
ISO/IEC 15992:2003 also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between SS-CPI(P) and other supplementary services and ANFs.
|
| Class |
C990
(IEC PUBLICATIONS IEC PUBLICATIONS)
|
| Status |
IEC PUBLICATION |
| Situation |
Currently active
|
|
| Committee |
ISO/IEC JTC 1/SC 6
TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS
|
| BEC Approval |
2003-03-24 |
| ICS-Code (International Standards Classification) |
33.040.35
|
| NBN Status |
New |
|
| IEC publication date |
2003-03-24 |
| IEC last modification date |
2014-04-14 |
|
