3CX and Telnyx

[voiplam]

Working with 3CX and Telnyx.
Trunk is in "Credentials" mode and established - green lights on both ends (in Telnyx and in 3CX). When I am trying to call main DID (the only number I have) I am getting busy signal immediately.
All possible checks were done - OK.
Please help.

 

[Alejandro_3CX]

Hi, what is the firewall checker result in this pbx? also what is the result when using the VoIP provider checker and test the incoming call?

In the event log, do you have any error about the incoming call?