I am running Trixbox 1.2.3 under VMWare on Windows. Recently, I’ve noticed very choppy sound quality on incoming calls ONLY. When I use the same phone to place an outgoing call, the sound is perfect.
Initially, I thoght the sound quality was something to do with running Trixbox under VMWare and I even installed Trixbox on a dedicated PC and experienced the same problem (choppy sound on inbound calls only).
After testing (and pulling my hair out), I’ve isolated the problem to be something to do with my Sipura 2100 unit. I found I was only getting the choppy sound on incoming calls when the call was answered by a phone that is connected to a Sipura 2100.
I’ve tried “Factory Resetting” the Sipura with no luck. There have been no changes recently to my Trixbox set up nor any changes to the Sipura configuration.
Has anyone ever heard of this problem or have any thoughts on what could be causing this?