incoming calls stop working after 2 minutes -- sip option

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wouam31

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Jul 1, 2022
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Hello everyone,
I have a little problem with my trunk.
Outgoing calls are OK.
Incoming calls are OK for about 2 minutes, then I have nothing (on fusionpbx).
I tested the trunk on another machine, no problems.

In Expire Seconds I put 300 as recommended by the vendor.

On the other hand, he tells me about SIP OPTION which must be set to 120.

This is the periodic timer used to send a SIP “OPTION” message to the provider. It can be used to maintain the router bindings opened for receiving incoming requests.

How can I do? Or am I mistaken?

Thanks
 

hfoster

Active Member
Jan 28, 2019
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Gateways -> Edit Gateway -> Advanced -> Ping = 120

If you are behind NAT, it might be worth investigating your UDP timeout configuration on the device carrying out NAT (router, firewall, etc). Some devices keep an incredibly low UDP timeout as a default which will close a SIP socket quite early.
 

wouam31

Member
Jul 1, 2022
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Hi! thank you for the information, I test and I will make a return, if it solves my problem

Fusionpbx is installed on a vps. The firewall is not activated. For the moment I am testing without security to avoid adding problems to fusionpbx.
 

wouam31

Member
Jul 1, 2022
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Hi! The ping option does not solve the problem, it goes well, my provider responds well to the ping, but incoming calls do not arrive after 2 min.

I tried to modify in the external profiles:
minimum-session-expires: 120
session timeout: 120

The problem persists.
 

wouam31

Member
Jul 1, 2022
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Hi, I just asked my supplier what problem he sees.
Their sbc sends well. I have nothing on my side.
It asks me to check my dialplan.
But calls do come in from time to time.

An idea? I am lost!
Thanks
 

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