I’m using FreePBX 188.8.131.52 and I encounter an issue regarding voicemail sounds (unavail.wav for example) using a specific SIP trunk.
I have 2 SIP trunks that receives incoming calls : A and B.
When I receive a call on A and it reaches voicemail X it works perfectly and plays the voicemail sounds (contained in /var/spool/asterisk/voicemail/default/X/ )before recording the messages.
When I receive a call on B and it reaches voicemail X no sound (contained in /var/spool/asterisk/voicemail/default/X/ ) is played before the recording.
When I compare the Asterisk log for the 2 incoming calls till it reaches voicemail it’s EXACTLY the same, the only difference is that at the end no sound is played.
I reviewed the config a lot of times and can’t find what is the problem, I thought about codecs but I checked and the trunks are exactly the same.
Any help will be MUCH apreciated.