1 Scope

24.0873GPPRelease 17Stage 3TSUser-to-User Signalling (UUS) supplementary service

This Technical Specification gives the stage 3 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)