9.3. VoIP Calls Window

9.3. VoIP Calls Window

The VoIP Calls window shows a list of all detected VoIP calls in the captured traffic. It finds calls by their signaling and shows related RTP streams. The current VoIP supported protocols are:

  • H.323
  • IAX2
  • ISUP
  • MGCP/MEGACO
  • SIP
  • SKINNY
  • UNISTIM

See VOIPProtocolFamily for an overview of the used VoIP protocols.

VoIP Calls window can be opened as window showing all protocol types ( → window) or limited to SIP messages only ( → window).

Figure 9.4. VoIP Calls window
ws tel voip calls

User can use shortcuts:

  • Selection

  • Ctrl+A - Select all streams

  • Ctrl+I - Invert selection
  • Ctrl+Shift+A - Select none
  • Note: Common Mouse click, Shift+Mouse click and Ctrl+Mouse click works too

  • On selected call/calls

  • S - Selects stream/streams related to call in RTP Streams window (if not opened, it opens it and put it on background).

  • D - Deselects stream/streams related to call in RTP Streams window (if not opened, it opens it and put it on background).

Available controls are:

  • Limit to display filter filters calls just to ones matching display filter. When display filter is active before window is opened, checkbox is checked.
  • Time of Day switches format of shown time between relative to start of capture or absolute time of received packets.
  • Flow Sequence opens Flow Sequence window and shows selected calls in it.
  • Prepare Filter generates display filter matching to selected calls (signaling and RTP streams) and apply it.
  • Play Streams opens RTP Player window. Actions Set, Add and Remove are available.
  • Copy copies information from table to clipboard in CSV or YAML.