Go to Settings > Asterisk SIP Settings > Under Nat Settings click on “Detect Network Settings”, Apply and try again.
Also, are you sure you are forwarding RTP ports on your router? (10000-20000 UDP)
stad: https://community.freepbx.org/t/freepbx-...onds/68371
Also, are you sure you are forwarding RTP ports on your router? (10000-20000 UDP)
stad: https://community.freepbx.org/t/freepbx-...onds/68371