I have a problem while using a freepbx (via PBX in a flash) that connects to a media gateway (asterisk) through IAX2 trunk.
There are other 16 servers connected to that same media gateway and they all work fine.
My problem is: when calling to 911 (just for this outbound route) i get one-way audio. I can hear the emergency operator but they can not hear me.
Again, the problem must be in this box, since there are other boxes conected to the same media gateway, using the same settings in freepbx to create the iax trunk.
The other boxes are just different versions of asterisk or freepbx.