X-Lte 3 and NAT

X-Lite ->Netgear Router WGR614 ->ISP ->Internet ->Asterisk
192.168.x.x ->10.10.x.x (DHCP) ->64.132.x.x ->xxx ->213.167.x.x

sip.conf
[x-lite]
type=friend
host=dynamic
dtmfmode=auto
secret=xxxx
context=xxxx
calerid=“x-lite”
nat=yes
qualify=yes
canreinvite=no

extensions.conf
[xxxx]
exten => radio,1,Answer
exten => radio,2,MP3Player(didx.net/jesus.mp3)


when I call “radio” I see that the Asterisk make connection (Answer and Play) but X-Lite dont’t respond and I don’t hear anything. I think that the problem may be is form ports, but I dont’t know how exactly to use “iptables”. Can someone tell me how to fix this problem?

have you tried proper codec? though im not sure if codec since its not another person on the other line…