Over the past weeks, Osmocom developer Daniel Willmann has been working on various improvements/extensions of the popular wireshark dissector in the context of using it with (Osmocom) GSM networks.The extensions include:
- support for playback of AMR from captured RTP streams (using libopencore-amrnb)
- extend RTP jitter/delay statistics for AMR-RTP as used in A-bis/IP and A/IP
- a new dissector for the Osmux (Osmocom Multiplex) protocol
- statistics support for the Osmux protocol.
The above features allow for much better analysis of any voice plane related issues in Osmocom GSM networks.
All related changes can be found in http://git.osmocom.org/wireshark/log/?h=daniel/osmux and we are actively submitting them to mainline wireshark at this point.