I have the exact same problem with my Yeastar S20 PBX: all outgoing calls through the Freephoneline trunk is disconnecting after exactly 15 minutes. Surprisingly, I have another trunk on the same PBX with another SIP provider (voip.ms) and calls never get disconnected. The SIP settings (ex: timeouts) on that PBX are global to all trunks. I tried changing the RTP reinvite and the session timers but nothing worked, calls are still getting disconnected.
I also checked the firewall (pfSense 2.4). There is no ALG running and state table cleanup is set to be Conservative. Whenever the call drops I still see the SIP and RTP entries in the state table for a long time after. So this is clearly not the firewall dropping the NAT state.
Like other people reported it in this discussion, I had a few random call drops before but this situation happenning at every outgoing call really started somewhere in March 2020. Any one has an idea?
Yeastar S20 PBX 15 minute outgoing call drop
- Liptonbrisk
- Technical Support
- Posts: 2773
- Joined: 04/26/2010
- SIP Device Name: Obihai 202/2182, Groundwire
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- ISP Name: FTTH
- Computer OS: Windows 64 bit
- Router: Asuswrt-Merlin & others
Re: Yeastar S20 PBX 15 minute call drop
Freepbx/Asterisk users in the thread you originally posted in resolved their issue by using type=peer and canreinvite=nointplus wrote:I have the exact same problem
http://forum.fongo.com/viewtopic.php?f=8&t=19803#p77291
http://forum.fongo.com/viewtopic.php?f= ... =25#p77295
I've split the topic since they've resolved their issue and yours involves Yeastar S20 PBX.
You might want to see if there's a firmware update or newer Asterisk version you can use.
pfSense doesn't have a SIP ALG unless you've installed siproxd.I also checked the firewall (pfSense 2.4). There is no ALG running
https://sourceforge.net/p/siproxd/discu ... /cb22/314d
For setting UDP timeouts, refer to https://forums.redflagdeals.com/freepho ... #p30454417and state table cleanup is set to be Conservative
I won't be setting up a PBX to troubleshoot, and I don't have your specific device. If you can't find answers here, or if no one else responds, you can try asking at https://www.dslreports.com/forum/voip.
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