I have a problem on freepbx where calls drop at exactly 30 minutes. We have exhausted options with the carrier. First off we have a PBX behind a Cisco ASA firewall. I believe we are using Sip Inspection. At 30 minutes we are seeing an invite request which seems to be coming from our PBX to the ca…

I could be wrong here, but I’ve heard about networking timeouts in the router causing weird behavior like this. I don’t know if there are tools now to resolve this or not, but it’s worth checking into. Here is an article talking about something similar: What does UDP Timeout mean? - Sky…

30 minute dropped calls! Not sure how to fix

FreePBX Providers

cynjut (Dave Burgess) December 17, 2019, 7:09pm 5

This one talks specifically about PJ-SIP