The author introduces a signaling protocol for user applications that invokes multimedia services provided by the EXPANSE research prototype, a broadband ISDN testbed. A generic framework that flexibly accommodates a wide variety of services involving multiple parties with heterogeneous terminals is described. The author describes the generic services supported, introduces the EXPANSE call model, discusses syntax and message flow procedures, and relates EXPANSE signaling to the ISDN signaling control part (ISCP) and long-term broadband ISDN signaling work currently under study by CCITT.>

The demand paging protocol (DPP) for dynamic sharing of a number space among a group of communicating entities is described. DPP is a decentralized, multipoint protocol for local sharing. Some possible applications for DPP are presented. DPP is evaluated in terms of aspects of other protocols that perform similar functions. DPP is found to be fairer and likely to incur less overhead, especially given a worst-case scenario, than another multipoint approach proposed in IEEE 802.6 for distributed-queue dual-bus message identifier (DQDB MID) allocation. DPP is more decentralized and less deterministic than the MID allocation procedure. However, because DPP is not deterministic in its polling sequence, it imposes some additional requirements.>

This panel presentation covers the following topics: benefits of new network architectures; requirements for these network architectures; feature of broadband ISDN (integrated-services digital network); and integrated services versus integrated transport.>