H.323 Continues to Lead Videoconferencing Revolution

February 19, 2010

H.323 and SIP were both created in the later 1990s to more-or-less address the same market: to enable one to place a voice or video call over an IP network. H.323 benefited from borrowing a lot of concepts from previous-generation multimedia systems, giving it the ability to easily handle voice and video conferences that might be as small as two people or as large as hundreds of people. SIP took a different direction and it seen an extremely slow road to adoption.

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2 comment(s)

by Tsahi Levent-Levi February 19, 2010 11:05 UTC

Funny - I just wrote about this same issue on my blog yesterday: http://blog.radvision.com/voipsurvivor/2010/02/18/where-in-the-world-is-h-323/

Me? I think that while H.323 is common in video conferencing deployments, SIP is actually gaining a lot of ground elsewhere (in everything voice).

by Paul E. Jones February 19, 2010 19:05 UTC

You're right that SIP deployments are increasing, though I've personally been disappointed that after 14 years since the first SIP draft was published (which was February 22, 1996), that the most we have is the ability (often with the help of an Acme Packet SBC to fix interworking issues) to place a voice call. To say that SIP has failed to live up to its hype is an understatement.