Session Initiation Protocol for Telephones (SIP-T)
SIP-T is used to carry ISDN signaling inside of SIP messages (in the body).
SIP-T is carried in SIP messages.
XXX - Add example traffic here (as plain text or Wireshark screenshot).
Wireshark can dissect SIP-T traffic. There is no separate SIP-T dissector; it's all done by the SIP ISUP and mixed-multipart dissectors.
Example capture file
XXX - Add a simple example capture file to the SampleCaptures page and link from here. Keep it short, it's also a good idea to gzip it to make it even smaller, as Wireshark can open gzipped files automatically.
A complete list of PROTO display filter fields can be found in the display filter reference
Show only the PROTO based traffic:
You cannot directly filter SIP-T protocols while capturing. See SIP for information on filtering SIP, but note that even if you filter SIP traffic, you can't filter out non-SIP-T traffic.