3CX extensions do not hear voice of incoming calls

[fabianus]

Hello !

When calls come in the caller hears the voice of the 3CX user but the 3XC user does not hear the caller's voice.
I tried to disable the firewall, but this does not solve the problem.

Thank you very much for any hint !

Regards,
Fabianus

 

[fabianus]

got it

it was about the ports of the router ;-)

Regards,
Fabianus