The present document describes the stage 2 description (architectural solution and functionalities) for the Presence Service, which includes the elements necessary to realise the stage 1 requirements...
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 SIP AS (Application Server) and between the HSS and the OSA SCS (Service...
The present document defines a call control protocol for use in the IP Multimedia (IM) Core Network (CN) subsystem based on the Session Initiation Protocol (SIP), and the associated Session...
The present document specifies the architectural requirements and procedures for delivery of IMS Service Continuity. TS 23.206 [3] is migrated to this specification. The scope of the specification...
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 describes the mechanisms used for the control and configuration of the Trace, Minimization of Drive Test (MDT) , Radio Link Failure (RLF) and RRC Connection Establishment Failure...
The present document is part of a series of Technical Specifications (TSs) that specify charging functionality and charging management in 3GPP networks. The 3GPP core network charging architecture...