3 Definitions, symbols and abbreviations

22.1823GPPCustomized Alerting Tones (CAT) requirementsRelease 17Stage 1TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 [1].

Alerting Tone: An indication that is played to the calling party during establishment of a call or during an established call session indicating one of the following:

– that the called subscriber is being alerted.

– the progress of communication request (Call Forward, Call Wait etc.)

– any alerting event during a call session

Customized Alerting Tone: An Alerting Tone that is customized by the called subscriber or the calling subscriber, and it can contain additional media types.

Customized Alerting Tone Service:A Customized Alerting Tone Service (CAT service) is an operator specific service by which an operator enables the subscriber to customize his alerting tone.

CAT Inter-action: is the interaction of the CAT service with other services, e.g. CAT Inter-action with Call Forwarding.

CAT Inter-working : Multiple Domains Inter-working is the interworking of a CAT service over different domains or subsystems (CS or IMS) as well as between PLMNs.

CAT content provider: A service provider that provides a set of Alerting Tones for use as CAT for subscribers of the CAT service. A 3GPP operator may be a CAT content provider.

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905 [1].

CAT Customized Alerting Tone