Past Contribution
In the mid-1990s, IMTC's Standards First! initiatives spurred the creation of the ITU-T T.120, H.320, H.324, and H.323 standards that led to the first cross-protocol switched and packet interoperability test sessions (later branded as SuperOp!).
In the mid/late-1990s IMTC released a Voice over IP Implementation Agreement, which specified dual-tone multifrequency (DTMF) data transfer and reproduction, and IP-specific needs such as directory services and dynamic IP address resolution mechanisms to support multi-party voice and voice-band calls over IP networks.
Test suites and procedures developed by the IMTC in the late 1990s demonstrated the viability of connecting gatekeepers, gateways, proxies, MCUs, endpoints and network components into integrated rich-media sessions and interoperability and interworking between IP networks and switched-circuit networks including H.323, SIP, the iNOW! Profile, and the T.120, H.320, H.324 M, H.248/Megaco, and H.450 protocols.
More recently IMTC has begun to highlight the interoperability of multimedia offerings for mobile phone users. These offerings are based on the 3GPP specifications for streaming, and interacting with, multimedia content (such as newscasts) on demand and in real-time over 3G wireless networks. They support offline file exchange (which involves raw codec bitstreams, packetized bitstreams and the 3GPP/MPEG-4 file format) and virtual streaming over the Internet and include streaming servers, multimedia terminals and content-creation tools in the value chain.
Read more about this topic: International Multimedia Telecommunications Consortium (IMTC)
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