Differences between revisions 8 and 9
Revision 8 as of 2007-08-16 23:21:14
Size: 1406
Editor: GuyHarris
Comment: Link to the ITU-T page.
Revision 9 as of 2008-04-12 17:49:59
Size: 1420
Editor: localhost
Comment: converted to 1.6 markup
Deletions are marked like this. Additions are marked like this.
Line 9: Line 9:
H.223 was developed by the ["ITU-T"]. H.223 was developed by the [[ITU-T]].
Line 14: Line 14:
 * However, Wireshark only dissects H.223 when it is transferred over ["TCP"], ["IAX2"], or ["RTP"].  * However, Wireshark only dissects H.223 when it is transferred over [[TCP]], [[IAX2]], or [[RTP]].
Line 30: Line 30:
 * attachment:SampleCaptures/h223-over-iax.pcap.gz
 * attachment:SampleCaptures/h223-over-rtp.pcap.gz
 * attachment:SampleCaptures/h223-over-tcp.pcap.gz
 * [[attachment:SampleCaptures/h223-over-iax.pcap.gz]]
 * [[attachment:SampleCaptures/h223-over-rtp.pcap.gz]]
 * [[attachment:SampleCaptures/h223-over-tcp.pcap.gz]]
Line 36: Line 36:
A complete list of H.223 display filter fields can be found in the [http://www.wireshark.org/docs/dfref/h/h223.html display filter reference] A complete list of H.223 display filter fields can be found in the [[http://www.wireshark.org/docs/dfref/h/h223.html|display filter reference]]

ITU H.223

H.223 is a multiplexing and framing protocol for multimedia streams over fixed-rate channels. It is used by video phones to send their data over the PSTN.

History

H.223 was developed by the ITU-T.

Protocol dependencies

  • Typically, H.223 is the lowest software layer, so depends only on hardware.
  • However, Wireshark only dissects H.223 when it is transferred over TCP, IAX2, or RTP.

Example traffic

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

Wireshark

The H.223 dissector is partially functional. It currently only dissects H.223 Level 2. Its handling of complex multiplex tables is untested.

Preference Settings

There are no configurable preferences for H.223

Example capture file

Display Filter

A complete list of H.223 display filter fields can be found in the display filter reference

  • Show only the H.223 based traffic:

     h223 

Since post 0.10.12 Wireshark only!

Capture Filter

You cannot filter H.223 while capturing.

Discussion

H223 (last edited 2008-04-12 17:49:59 by localhost)