[Asterisk-Users] SIP Extension behind NAT, Asterisk on a public domain

[Bharath Khambadkone]

Hello All,
I'm fairly new to asterisk. I have read about the problems about NAT, But
can't seem to find a solution.
My Asterisk is on a public domain, there is no NAT or firewall in front of
the asteris box. I have sucessfully connected iax2 softphones & was able to
recieve & make calls. In the same locations where I have the iax2 extensions
working I have set up a a SIP softphone & a SIP ATA (Sipura2002). Both teh
sip phones are able to register. I can also make & recieve calls but cannot
hear anything after the call is answered at both ends. I'm not sure what is
causing this problem. By the way I'm using SME server 7(centos 4.2)
with A at Hinstalled.

my Sip.conf :
[2008] ;(Sipura2002)
username=2008
type=friend
secret=2008
record_out=Adhoc
record_in=Adhoc
qualify=no
port=5060
nat=1
mailbox=2008 at device
host=dynamic
dtmfmode=rfc2833
context=from-internal
canreinvite=no
callerid=device <2008>


[2009] ;X-Lite Soft Phone
username=2009
type=friend
secret=2009
record_out=Adhoc
record_in=Adhoc
qualify=no
port=5060
nat=1
mailbox=2009 at device
host=dynamic
dtmfmode=rfc2833
context=from-internal
canreinvite=no
callerid=device <2009>

Thanks in advance..
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