Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); User-to-User Signalling (UUS) supplementary service; Stage 2 (V14.0.0; 3GPP TS 23.087 version 14.0.0 Release 14; Includes Diskette)
The present document gives the stage 2 description of the User-to-User signalling supplementary services. The User-to-user supplementary service is divided into 3 different services: - Service 1 (UUS1) - Service 2 (UUS2) - Service 3 (UUS3)