Title :
Interworking between SIP and MPEG-4 DMIF for heterogeneous IP video conferencing
Author :
Ahmed, Toufik ; Mehaoua, Ahmed ; Boutaba, Raouf
Author_Institution :
CNRS-PRiSM Lab, Versailles Univ., France
Abstract :
This article discusses technical issues related to delivery and control of IP multimedia services, such as videoconferencing, involving heterogeneous end terminals. In particular, it describes the design and implementation of an experimental system for interworking between IETF SIP (session initiation protocol) and ISO MPEG-4 DMIF (delivery multimedia integration framework) session and call control signaling protocols. This IP videoconferencing interworking system is composed of two core units for supporting delivery of audio-video streams from a DMIF domain to a SIP domain (i.e. DMIF2SIP unit) and from a SIP domain to a DMIF domain (i.e. SIP2DMIF unit). These units perform various translation functions for transparent establishment and control of multimedia sessions across an IP networking environment, including, session protocol conversion, service gateway conversion and address translation.
Keywords :
Internet; multimedia communication; protocols; telecommunication signalling; teleconferencing; DMIF domain; DMIF2SIP unit; IP multimedia services; IP networking environment; MPEG-4 DMIF; SIP domain; SIP2DMIF unit; address translation; audio-video streams; call control signaling protocols; delivery multimedia integration framework; heterogeneous IP video conferencing; heterogeneous end terminals; interworking; multimedia sessions; service gateway conversion; session initiation protocol; session protocol conversion; session protocols; translation functions; videoconferencing; Internet; MPEG 4 Standard; Multimedia systems; Protocols; Signal design; Signal mapping; Streaming media; Teleconferencing; Video compression; Videoconference;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.997287
