I have an old install of FreePBX which has been upgraded over the years and I never solved the one-way audio issue see my previous thread . I intermittently get one-way audio when calling ring groups. Most of time there is no problem but it is an annoyance I really need to fix before my users physically damage the phones.
I have VPN’s that connect remote offices together and PBX lives in a Hyper-V VM. There is no NAT, all branch subnets are declared to FreePBX as local subnets.
I am now using FreePBX 126.96.36.199 with Asterisk Version:16.13.0. Most phones are Snom.
I am able to do a tcpdump on the FreePBX machine and see that Asterisk receives the RTP packets but fails to forward them to the other side causing the 1-way audio.
I have attached a packet capture of this issue and believe the issue is within FreePBX/Asterisk but I have not been able to correlate any messages in the full log with the one-way audio.
Does anyone have suggestions on what type of verbose/debug I should enable in asterisk to debug this further?
one-way-audio.tgz (162.1 KB)