ETSI - TS 181 006
Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Direct Communication Service in NGN; Service Description
| Organization: | ETSI |
| Publication Date: | 1 October 2006 |
| Status: | inactive |
| Page Count: | 10 |
scope:
The present document defines the requirements for a Direct Communication which may be supported by a TISPAN NGN. These requirements form the basis for the definition of network capabilities. These requirements are an endorsement of the OMA requirements specifications.
The present document only provides requirements for IP multimedia based networks. Services provided by a TISPAN NGN to support legacy terminals and interfaces (PSTN/ISDN emulation) are defined in existing PSTN/ISDN documents. Requirements for PSTN/ISDN emulation are out of scope of the present document and are described in other documents.
The requirements in the present document are described from the user point of view. The requirements do not take into account capabilities of existing protocols defined for the IMS. The evolution or modifications to these protocols are beyond the scope of the present document.
NOTE: The present document uses the term "NGN" only in the context of TISPAN.
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