The present document provides the protocol details for the messaging service within the IP Multimedia CN Subsystem (IMS) based on the Session Initiation Protocol (SIP), the Session Description...
The present document defines the stage-2 service description for the General Packet Radio Service (GPRS) which is a packet bearer service and a main part of the packet domain. ITU-T Recommendation...
The present document defines the second version of GTP used on: - the Gn and Gp interfaces of the General Packet Radio Service (GPRS); - the Iu, Gn and Gp interfaces of the UMTS system. NOTE: The...
The present document provides the Stage 3 specification of the S9 reference point for the present release. The functional requirements of Stage 2 specification for the S9 reference point are...
The purpose of this TS is to describe the service access procedures as presented to the user. Definitions and procedures are provided in this TS for international roaming, national roaming and...
