call cut after 30s

[ESI4U 0]

Hello,

 

During a call between PBX Vodia, the conversation always cut after 32s, the operator is OVH (France), I tested different configuration but nothing changes.

From a softphone to a PBX VODIA everything is ok

 

Thank you in advance

Cordially

[ahennis@voicespring.net 0]

Sounds like a NAT or SIP ALG problem in your router.

[ESI4U 0]

Thanks for response.

 

There are no active alg sip on the router (actually it is a firewall that does the routing), regarding NAT, what parameter I need to change.

 

it'a only between two Vodia PBX, to a mobile phone or a landline, no problem

[Vodia PBX 0]

32 seconds sounds a lot like a problem with the SIP routing, the ACK does not seem to make it. I would also think that it is a problem with the SIP router and/or firewall; maybe just a simple NAT problem: If a HTTP server works, it does not mean that the SIP server works as well...

 

I would make a PCAP trace for the call and take a look at it.

[ESI4U 0]

Hello,

 

Here is my capture of a Call Drop

 

https://www.wetransfer.com/downloads/e5864850136cbf193aad04904ace6a2720161007141210/6d65dde01cd2f43113c058ec2e8af04a20161007141210/294637

 

 

 

 

Thanks

[Vodia PBX 0]

Well the INVITE from OHV gets cancelled (BYE) after 478 ms. That does not leave much time for the PBX to answer. There is a Q.850 reason, something from the PSTN network.

 

What you can try to do is to back up the working directory of the PBX, upgrade to 5.5.0 demo license and see if the problem disappears.

[ESI4U 0]

Hello,

I have other PBX in latest version with which I have the same problem.

 

Can you be more specific on the NAT ?

 

Thanks

[Vodia PBX 0]

I would try to change the setup, for example try to run this from the home network instead of the office network. There are a lot of different router models out there, and lots of them are making trouble with SIP. For example, the FiOS router for Verizon has a "application layer gateway" built in that cannot be turned off and creates a lot of trouble. There is a good chance that you have a similar problem; the easiest way to find out is to change the setup and see where it makes a difference.