New Static IP - No Calls Out

[CISD21]

We migrated ISP's last week, and now can't make calls out via 3CX (v18 on Server 2016.)

I updated the static IP within 3CX, which appears to have worked just fine - though I've read I should have switched to dynamic and back to static, so I'm currently set to dynamic.

Our SIP trunk is a Patton SN4171, we've had no issues until now.

If I check the activity log for my extension calling out I see the log message below. (Cell number removed for obvious reasons.)

07/05/2022 12:02:25 PM - Call to T:Line:10000>>**CELLNUMBER**@[Dev:sip:[email protected]:5060;transport=udp] from L:1.1[Extn:1170] failed, cause: Cause: 503 Service Unavailable/INVITE from 10.56.33.5:5060

Any ideas?

 

[Saqqara]

Changing the isp wan IP address within 3cx , should not affect the config of the SN4171 as this uses isdn2 lines for phone calls.

is the Patton registered ? , does it affect outbound and inbound calls ?

 

[cobaltit]

Did you also change your LAN at all, or just your public IP? Where is the Patton in relation to 3CX?

 

[CISD21]

LAN hasn't changed, just our public IP. Both are on our network, sitting next to one another in our data center.