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« on: June 08, 2021, 05:06:59 PM »
Hi
I've been looking on the forum to figure out what is causing calls through a SIP trunk to end in 30 secs. I haven't found a fix, but most of the suggestions are to look for SIP Peer Profile > Timers. I've played around with many different settings and issue still persist. I think it may have something to do with SIP acknowledge timing out?
Here's my setup. I have a Mitel 3300 & a MAS. I have two other PBX, a Grandstream 6308 and an Asterisk PBX. Both Grandstream and Asterisk are able to make and receive calls to and from the Mitel 3300. The issue is calls to and from the Grandstream and Mitel PBX only last 30 secs. Packet capture indicates the Mitel sends a SIP Reques: BYE causing the call to end after 30 secs.
This does not occur between the Asterisk and Mitel PBXs. Calls between the Asterisk PBX and Mitel can last all day.
On my Mitel3300 I have two Network Elements setup for two SIP Peers. Both are using the same COS/COR. AFAIK I can use the same COS/COR right? Is there any trunk setting on the Mitel that could limit my calls to 30secs?
If you look at the packet capture, all my devices are on the same VLAN, so NAT should not be an issue. The Mitel is 192.168.21.2, Grandstream is 192.168.21.4, the SIP extension is registered to Grandstream @ 192.168.21.66. Mitel 3300 is on Ver 7.1 and I don't think the MAS has anything to do with this issue.
Thanks in advance for the help.