SIP registration error v20 (Untrusted Provider)

[AMi13]

Hi I am getting indication on SIP as untrusted Provider. I won't be able to make and receive calls.

 

[TheodorosG_3CX]

The reason that you see this error is because you are using an unsupported provider. As for the inbound/outbound calls, this has to be clarified with your provider but note that those are the reasons we always recommend to use a 3CX Supported Provider.