3cx sip trunk not registered

[jorgemichel]

Registration at SIP UT 01 has failed. Destination (sip:42.78.134.165:5060;transport=TCP;lr) is not reachable, DNS error resolving FQDN, or service is not available.

 

[Evolute IT]

Please provide: https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/

 

[jorgemichel]

The problem was already on the provider's side.
thank you so much.