One-way audibility to a multiphone?

Question

SIP

Hello!
I received a sip account from a megaphone (Multifon business), installed and configured a softphone on a laptop (mac os), calls go both incoming and outgoing, but the problem is that only me is heard, I can’t hear the interlocutor. The laptop is connected to a zyxel keenetic omni 2 router via wifi.

Answer 1

I figured it out, I still had to forward upd ports with a range of 1024-65535!