asterisk users - Nov 2012 - audio trouble with asterisk, help very much appreciated

________________________________
 From: Jody Gugelhupf <knueffle at yahoo.com>
To: "asterisk-users at lists.digium.com" <asterisk-users at
lists.digium.com>
Sent: Thursday, November 29, 2012 10:23:01 PM
Subject: audio trouble with asterisk, help very much appreciated
 

Hi there :)

first about my setup, running centos 6.2, asterisk 1.8.13.0, freepbx 2.9.0.12.?
I have a modem/router with NAT enabled. Asterisk and my extension from which I
make the call are on the same local network, behind the modem/router.
I have forwarded ports 10000-20000 to asterisk and configured asterisk
accordingly.
My external IP is 195.205.34.24. Asterisk and freepbx are on 192.168.2.199, my
extension I make the calls from is '903' and is on 192.168.2.202.
I have configured my extension and connected it. Also I have setup sip trunks
and configured outbound rules etc.
This all works fine. When I receive calls, all works great, I have two way audio
without any trouble.?
When I make an outbound call, the incoming audio works without flaws, however my
outgoing audio drops after a minute or so. So first the other person can hear me
then not. On some calls the outgoing audio starts working again after a bit, but
then drops again.
In freepbx in the 'asterisk sip settings' I'm not sure how to set
the NAT settings properly. Currently:
NAT: yes (but have also tried 'no', 'never', and 'route'
whilst keeping same settings below with same audio problems results as described
above)
IP Configuration: Static IP
External IP: 195.205.34.24
Local Networks: 192.168.2.0/255.255.255.0
Would this be correct?
?
I have run 'sip set debug on' and 'rtp set debug on' to see what
happens during the call, the output is here:
http://pastebin.ca/2257975
Would appreciate any help. Thank you in advance! :)

Jody
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