[Freeswitch-users] NAT issue from client

Hi all, I have built basic FS server with default sip account 1011 & 1012. I have registered 2 this accounts with xlite, portgo. them in NAT via my router. When I make call, call connect and drop after 30 seconds. my dialplan is: <extension name="public_extensions">       <condition field="destination_number" expression="(\d+)$" >         <action application="set" data="hangup_after_bridge=true"/>         <action application="bridge" data="sofia/internal/${destination_number}@${domain_name}"/>       </condition> I have tried many configure but not success. PLease help to fix this issue. I am veny new in this system and tried many cases to fix it. Thank all for suggesttion.   ThanhTruong