No incoming or outgoing calls on registered SIP-Trunk

[Rhoencloud]

Hello there,

today we transferred your 3CX from a Windows-Server to a Linux-Server.
We managed these with an simple backup. Installation and restoring the backup on the new machine was no problem.
The problems began after this.
We had two SIP-Trunks registered on the Windows machine. One of the trunks is still working as usual. The second one is still registered but no calls are coming in, an outgoing calls have no sound. Our provider checked the failing trunk and can´t find any problem on there side.

When we reactivate the Windows-Server both SIP-Trunks are working fine.

The network setup is the same (public/ private IP-Address and FQDN) so the routing and DNS shouldn´t be a problem. Firewall check finishs without any error.
Of course we´re not using the old and new system at the same time, but switching while testing.

Has anyone an idea what the problem could be?

 

[YiannisH_3CX]

Hello @Rhoencloud

At first glance it looks like a routing issue but without looking at logs and captures we cannot be sure what is causing the issue.
Do the 2 machines have the same local IP and you just use 1 at the time or are the local IPs different? You might want to check the NAT configuration on the firewall if the IPs are different.
Also are these behind the same public IP or did you move the installation to a different location?
Did you use the 3CX ISO to configure the machine or not?

 

[Rhoencloud]

Hello @YiannisH_3CX

The 2 machines have the same local and public IP but of course are not used at the same time. The NAT configuration is correct and the firewall-check returns no errors.
We did use the 3CX ISO for the installation.

As i said, on the same linux machine is a second SIP-Trunk running without any problem.

What logs and caputres would u need?

 

[YiannisH_3CX]

I will send you a p.m. shortly with what is needed so we can have a quick look.