The present document describes the location management procedures for the circuit switched domain, with respect to the application level functional behaviour. This is to be distinguished from the...
The present document describes several alternatives for the realisation of Mobile Number Portability. The present document includes information applicable to network operators, service providers,...
The present document gives the stage 2 description of the call transfer supplementary services. Only one call transfer supplementary service has been defined, this is the Explicit Call Transfer (ECT)...
This 3GPP Technical Specification (TS) specifies: 1. The interactions between the HSS (Home Subscriber Server) and the SIP AS (Application Server) and between the HSS and the OSA SCS (Service...
IMS Centralized Services (ICS) enable the delivery of IM CN subsystem based multimedia telephony and supplementary services as defined in 3GPP TS 24.173 [4] to users regardless of the attached access...