3 Definitions and abbreviations

23.1193GPPGateway Location Register (GLR)Release 17Stage 2TS

3.1 Definitions

For the purposes of the present document, the following terms and definitions apply.

Gateway Location Register: this entity handles location management of roaming subscriber in visited network without involving HLR

Intermediate GSN: this entity is used as serving GSN towards home network and relay some PDU notification messages between serving GSN and Gateway GSN

Intermediate MSC: this entity is used as serving MSC towards home network and relay some messages between serving MSC and home network

3.2 Abbreviations

For the purposes of the present document, the following abbreviations apply:

CCBS Completion of Calls to Busy Subscriber

GLR Gateway Location Register

GPRS General Packet Radio Service

IM-GSN Intermediate GSN

IM-MSC Intermediate MSC

SGSN Serving GPRS Support Node