ITU H.323

H.323 "Packet-based multimedia communications systems" refers to a family of VoIP protocols including H225 and H245, see VOIPProtocolFamily for an overview.

History

H.323 was introduced by the ITU-T in 1996.

Protocol dependencies

• H.323 is independent of the underlying transport protocol, but uses H225 and H245

Example traffic

XXX - Add example traffic here (as plain text or Wireshark screenshot).

Wireshark

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...

Preference Settings

There are no H.323 related preference settings.

Example capture file

• SampleCaptures/rtp_example.raw.gz example H245 capture file including H225, H245, RTP and RTCP packets

Display Filter

As H.323 isn't a protocol itself, you cannot filter on it. But you can filter on H245 and H225.

Capture Filter

You cannot directly filter H.323 protocols while capturing.

External links

• 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

Discussion

Imported from https://wiki.wireshark.org/H323 on 2020-08-11 23:14:36 UTC