I installed Asterisk 22.214.171.124 in my plug and it is working perfectly for SIP. I'm just facing some problems with chan_mobile, the audio through bluetooth is only working on one way. I have the same setup in a x86 and it works. For some reason the bluetooth drivers in the plug are not working properly. The received packets are not properly parsed. I'm trying to investigate this bug.
Thanks for the success story. May I asked how you installed, package or source? Any particular issues, or did it simply just work? Thanks again.