I'm going to, and I seem to be experiencing the same (and more) problems in both the latest gtk and qt version of the git version.
I'm using the 'Telephony' (and especially the 'VoIP calls' / 'RTP Player') menu of Wireshark a lot.
Most of the time wireshark is great for analyzing phone calls, but especially on large files it crashes frequently (on versions ranging from 1.8 until the just now tested git version).
Another bug in the latest git version I just came across is that not all VoIP calls are recognized in a file, only the first 10-20 or so are shown and then nothing.
Also, I know how to code a bit of C/C++ and some basic GDB, so that's the reason I'm compiling first and asking questions/reporting bugs later :p.
Kind regards,
Gerlof Fokkema