H.225 "Call signalling protocols and media stream packetization for packet-based multimedia ommunication systems" is a VoIP protocol, see ["VOIPProtocolFamily"] for an overview.
H.225 was introduced by the ["ITU"] in 1996?
- H.225 is independent of the underlying transport protocol
XXX - Add example traffic here (as plain text or Ethereal screenshot).
The H.225 dissector is (fully functional, partially functional, not existing, ... whatever the current state is). Message and Message Reason Counters are available, see Statistics->H.225...
One preference setting exists: Whether to do "reassembly h225 spanning multiple TCP segments or not" this setting is dependent on settings in ["TCP"], ["Q931"] and ["TPKT"].
Example capture file
attachment:SampleCaptures/rtp_example.raw.gz (libpcap) A VoIP sample capture of a ["H323"] call (including ["H225"], "H245"], ["RTP"] and ["RTCP"]).
A complete list of H.225 display filter fields can be found in the [http://www.ethereal.com/docs/dfref/h/h225.html display filter reference]
Show only the H.225 based traffic:
You cannot directly filter H.225 protocols while capturing.