H.225 "Call signalling protocols and media stream packetization for packet-based multimedia communication systems" is a VoIP protocol, see VOIPProtocolFamily for an overview.
H.225 was introduced by the ITU-T in 1996?
- H.225 is independent of the underlying transport protocol
XXX - Add example traffic here (as plain text or Wireshark 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...
Example capture file
A complete list of H.225 display filter fields can be found in the display filter reference
Show only the H.225 based traffic:
You cannot directly filter H.225 protocols while capturing.