Ignition VoIP - No sound


Have a VoIP service connected, and Registered with VOIP Host is showing on the settings page.
When I trigger an alarm and the notifiaction pipeline calls me up I get no sound when I pick up.

I tried to monitor the data in wireshark, and when going to the Telephony/RTP/RTP Streams, I find the sound of the call, and I can play the call. The call sounds exactly like it should.

What could cause that stream not to go all the way to me?
Wrong RTP port?

Firewall or NAT somewhere along the way. Possibly also a codec not supported by your VOIP provider.

Solution were setting the Public and Local Bind Address fields to be blank.