Session Initiation Protocol (SIP)

The Session Initiation Protocol (SIP) is an application-layer control (signaling) protocol for sessions.

These sessions include Internet telephone calls, multimedia distribution, and multimedia conferences. SIP can create, modify, and terminate sessions with one or more participants.

The SIP protocol is a member of the VOIPProtocolFamily.


XXX - add a brief description of SIP history

Protocol dependencies

Example traffic



The SIP dissector is fully functional. You can also view SIP message statistics (Statistics | SIP...) or view SIP call flow graphs (Statistics | VoIP Calls)

Preference Settings

Example capture file

SampleCaptures/aaa.pcap Sample SIP and RTP traffic.

Display Filter

A complete list of SIP display filter fields can be found in the display filter reference

Show only the SIP based traffic:


Capture Filter

You cannot directly filter SIP protocols while capturing. However, if you know the UDP or TCP or port used (see above), you can filter on that one.

External links

IETF Charters:




Imported from on 2020-08-11 23:24:44 UTC