ETSI TS 101 324

This work item deals with naming, numbering, and addressing issues spe cific to calls from IP based terminal to E.164 terminals (PSTN/ISDN/GS M). It includes the name for the E.164 terminal that is used by the IP based terminal and how it maps to the address of an appropriate gatew ay and to the destination of the call. There will be an investigation into existing schemes that may be relevant to this problem. Requiremen ts for an acceptable solution will be developed. After requirements are validated by the ETSI TIPHON Project, existing as well as new schemes will be evaluated with respect to the requireme nts and specifications will be made. The impact of carrier selection will be considered in evaluating solutions. Acceptable solutions must work with both IPv4 and IPv6.