IP Multimedia (IM) Core Network (CN) subsystem Service Continuity (SC) provides the capability of continuing ongoing communication sessions with multiple media across different access networks. The...
The present document specifies the principles of interworking between the 3GPP IM CN subsystem and BICC/ISUP based legacy CS networks, in order to support IM basic voice, data and multimedia calls....
This 3GPP Technical Specification (TS) specifies: 1. The interactions between the HSS (Home Subscriber Server) and the CSCF (Call Session Control Functions), referred to as the Cx interface. 2. The...
This 3GPP Technical Specification (TS) specifies: 1. The interactions between the HSS (Home Subscriber Server) and the CSCF (Call Session Control Functions), referred to as the Cx interface. 2. The...
The present document defines the ISIM application for access to IMS services. The present document specifies: - specific command parameters; - file structures; - contents of EFs (Elementary Files); -...