Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Customized Alerting Tone (CAT) requirements; Stage 1 (V10.0.0; 3GPP TS 22.182 version 10.0.0 Release 10)
The present document specifies the requirements and technical considerations for Customized Alerting Tone (CAT) service in both CS and PS domains@ especially additional features for roaming and interoperability support. This document considers voice and multi-media CAT@ so the CAT user may experience favourable songs@ multi-media clips or other customized alerting tones.