Latest FreeSWITCH code (SIP server) has implemented support for ZRTP. They've added libZRTP SDK (http://zfone.com/prod_sdk.html) into the build. As a result, now OBi100 device making a new call crashes, going into reboot when audio stream just begins (right after call is answered). Perhaps OBi100 is not ready to receive a new media stream and just crashes (goes to reboot) for some or another reason. I don't think the answer is in patching FS/ZRTP because of two reasons:
1. Other SIP clients still work just fine in that environment, even if they don't support ZRTP.
2. Sooner or later, more and more SIP servers will start to use ZRTP...
Is there any way to find a solution here? Offering support for ZRTP (using free libZRTP SDK (http://zfone.com/prod_sdk.html)) would be the best, simple stop of crashing/reboots could be at least...
And BTW, how to diagnose the problem with OBi100, if it crashes?