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Keep Alive for 3CX SIP 5060
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Topic: Keep Alive for 3CX SIP 5060 (Read 87 times)
spooner.arthur
Newbie
Posts: 25
Karma: 0
Keep Alive for 3CX SIP 5060
«
on:
October 31, 2024, 12:15:30 pm »
Hello,
I want to close incoming ports to the 3CX PBX to SIP 5060
Because it is not necessary, if the connections is open.
Now, I need to configure that OPNsense doesn't close the connection from the 3CX to the Provider.
How can I setup a keep alive for this?
Thanks, Regards
Arthur
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Monviech
Global Moderator
Hero Member
Posts: 1516
Karma: 171
Re: Keep Alive for 3CX SIP 5060
«
Reply #1 on:
October 31, 2024, 12:22:31 pm »
When STUN is configured it will send keepalives to a STUN server to keep the port open.
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Hardware:
DEC740
spooner.arthur
Newbie
Posts: 25
Karma: 0
Re: Keep Alive for 3CX SIP 5060
«
Reply #2 on:
October 31, 2024, 05:28:09 pm »
I don't use STUN
If I disable the Rule SIP 5060 it works so long I have a Call.
But after some Minutes the OPNsense close the inactive connection.
I need to reregister the SIP Trunk on the 3CX
I hope there is a setting for Keep Alives
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Monviech
Global Moderator
Hero Member
Posts: 1516
Karma: 171
Re: Keep Alive for 3CX SIP 5060
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Reply #3 on:
October 31, 2024, 05:49:06 pm »
The OPNsense is not responsible for sending a keepalive.
The 3CX and the SIP registrar need to use keepalives, either with SIP Options or with STUN to keep the state of the stateful firewall open.
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Hardware:
DEC740
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Keep Alive for 3CX SIP 5060