The present document provides details concerning information to be stored in home subscriber servers@ visitor location registers@ GPRS Support Nodes and Call Session Control Function (CSCF) concerning mobile subscriber. Clause 2 contains all details concerning the definition of the parameters@ often given by reference to other specifications@ and where the parameter is to be stored. Table 1 in clause 3 gives a summary overview and clause 4 identifies the reference information required for accessing the information. The Third Generation Partnership Project (3GPP) has developed the specification in a form optimized for the wireless environment. This Recommendation references the ETSI version of the 3GPP specification and specifies only the modifications necessary to optimize it for the cable environment. Additions are shown in blue underline and deletions in It is an important objective of this work that interoperability between IPCablecom 2.0 and 3GPP IMS is provided. IPCablecom 2.0 is based upon 3GPP IMS@ but includes additional functionality necessary to meet the requirements of cable operators. Recognizing developing converged solutions for wireless@ wireline@ and cable@ it is expected that further development of IPCablecom 2.0 will continue to monitor and contribute to IMS developments in 3GPP@ with the aim of alignment of 3GPP IMS and IPCablecom 2.0. The modifications to ETSI TS 23-008 V6.8.0 (2005-12) Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3 are listed below.