Quote from: drgeoff on March 29, 2019, 12:39:16 PM
1. A router actions SIP ALG only on WAN traffic. Your OBi to PBX packets are purely on the LAN.
2. Are you certain about where the incoming audio is getting dropped? If you are using an analogue phone on the 212 then you have
POTS LINE -- OBi212 LINE jack -- LAN -- PBX -- LAN -- OBi212 phone jack -- phone.
If an incoming POTS call goes to voicemail, are there drops in the recorded message?
Are the drops in incoming audio present in both POTS calls made and POTS calls received or in only one of those?
If you use the analogue phone on calls to and from a VoIP distant end do the drops occur?
1. Thanks, this makes sense
2. The dropped audio is always on my side but we're going to test based on your scenarios and i will report back. Our configuration is:
POTS LINE -- OBi212 LINE jack -- LAN -- PBX -- LAN -- Yealink t46s SIP endpoint
Calls between extensions (entirely internal calls) are working perfectly.
I will report back soon, thanks for your suggestions!
UPDATE: I've done the above tests and calls going to VM, pots calls made and pots calls received all have the audio drops. Any call made through FreePBX over the pstn has the same intermittent issue on the incoming audio (only).
As an aside, testing directly at the pots demarc shows it's not an issue at that point. Likewise, i made a couple calls from an analog phone attached to the OBi FXS port (directly to the pots line / bypassing the FreePBX entirely) which seem to not have the intermittent audio issue either.
My testing has shown the intermittent audio can start almost immediately after the start of the call or can take 5-10+ minutes to start.