3 Definitions and abbreviations

09.133GPPSignalling interworking between ISDN supplementary services Application Service Element (ASE) and Mobile Application Part (MAP) protocolsTS

3.1 Definitions

For the purposes of this specification, the following definitions apply:

SSAP: Supplementary Service Application Part. SSAP is the protocol used for CCBS procedures on the interface between the originating and destination network. Communication across this interface is performed using SCCP Connectionless Signalling (Refer to ETS 300 358). The terms CCBS-ASE defined in ETS 300 356-18 for the ISDN CCBS service and SSAP defined in GSM 03.93 are the same and are used interchangeably in this specification. The SSAP interface is between the originating network entities (HLR A, OLE) and the destination network entities (HLR B, DLE).

3.2 Abbreviations

Abbreviations used in this specification are listed in GSM 01.04.

For the purposes of this specification, the following abbreviations apply:

ASE Application Service Element

CCBS Call Completion to Busy Subscriber

DLE Destination Local Exchange

ISDN Integrated Services Digital Network

MAP Mobile Application Part

OLE Originating Local Exchange

SCCP Signalling Connection Control Part

SSAP Supplementary Service Application Part

TC Transaction Capabilities