Hello everyone! I have been trying to battle this issue for the better part of today, but it seems that I have had no success. I have been getting intermittent one-way audio on my 3CX setup - some calls I make to remote/external extensions work with bidirectional audio, but some only give one-way audio (I can't hear the caller but the caller can hear me). On the other hand, all inbound calls have bidirectional audio. I have opened all necessary ports (3CX Firewall scan passes with flying colors), but this issue is still happening. I tried disabling/enabling STUN - no go. UserID and Password are all correct + 3CX shows that it has successfully registered with my VoIP server. Any ideas? Thanks!