3CX Call Issues

[Ihearyou]

Hi Support,

I recently took over a site which uses 3CX and I have no previous experience with 3CX. The site is having some issues with calls etc and when looking through the logs I see the following:

1. Call or Registration to XXXXX@(Ln.10002@Trunk to XYZ) has failed. IP Address replied: 503 Service Unavailable; from IP Address:5060
2. Call or Registration to XXXXXX@(Ln.10001@Trunk to XYZ) has failed. IP Address replied: 503 Service Unavailable; from IP: IP Address:5060
3. Call or Registration to XXXXX@(Ln.10001@Trunk to XYZ) has failed. IP Address replied: 404 Not Found; from IP:IP Address:5060
4. Call or Registration to 2@(Ln.10002@Trunk to XYZ) has failed. IP Address replied: 404 Not Found; from IP:IP Address.19:5060
5. Registration at Trunk to XYZ has failed. Destination (sip provider@provider:5060) is not reachable, DNS error resolving FQDN, or service is not available.
6. Device Mobile dialed on (AnyLine@Trunk to XYZ) had no available outgoing trunk(s) for Call(from "IP Phone"<sip:[email protected]:5060>;tag=826833034 to mobile number)

I have removed the clients number etc from the above for confidentiality.

One of the errors which is point 5 suggests DNS. I can confirm the site is not having any issues with DNS. I have also confirmed DNS settings on PC is correct. I have also rules out firewalls and any packet loss.

I suspect we have a few issues here.

1. The provider is having issues
2. Outbound call flow is not setup correctly as per number 6.

The SIP lines are Register/Account Based.

May i ask for people opinions on the following?

Regards

 

[charles]

HI There

Based on the provided information i would suggest to look at the IP address which the 503 and 404 errors are being received from.

This you will find will be the providers IP, so you need to contact them and ask them why this is.