No sound in partiulcar trunk

hi,

I have a very unique problem, I have more than one trunk in my server. I can’t seem to make call from a particular trunk, the calls are showing as connected in CDR but no sound both way. I can make outgoing calls from other trunks but not from this particular one. I tried using the problem trunk in another server and it works fine.

Please anyone help.

My Freepbx version is 2.11.0.0

Make sure your router is allowing ports 10000 - 20000 for a start, or if you use WebMin make it ports 10001 - 20000, that number is not normally required unless you have extremely high call volumes.

Also inside your truck, make sure nat=yes, this is required in most cases with most routers.

You may also want to have a read through the following. http://www.freepbx.org/support/documentation/howtos/howto-resolving-audio-problems