H.323 was introduced by the ITU-T in 1996.
XXX - Add example traffic here (as plain text or Wireshark screenshot).
The H.323 dissector is (fully functional, partially functional, not existing, ... whatever the current state is). Since Wireshark 0.10.7, a list of H.323 conversations was added, see Statistics->H.323 Conversations...
There are no H.323 related preference settings.
Example capture file
You cannot directly filter H.323 protocols while capturing.
http://www.en.voipforo.com/H323/H323_objetives.php H.323 protocol overview
http://www.voxgratia.org/ open source H.323 implementation
- Old openh323 site (not maintained) is at www dot openh323 dot org
http://www.packetizer.com/voip/h323/ additional infos about H.323 and other VoIP