[Serdev] Better NAT support in registrar

[Andres]

>sip:1.2.3.4:5060;dstip=5.6.7.8;dstport=5090
>
>Where the hostname part is the public IP of the NAT, the port (5060) is
>the port allocated by the NAT, "dstip" parameter is the IP used on SER
>side and "dstport" parameter is the port number used on SER side during
>registration. This information is later used to find the correct outgoing
>socket in SER. If no such socket can be found (it can happen if you
>reconfigure SER to use different ports or IPs), it will use the default 
>IP/port again.
>
>Daredevils are encouraged to give it a try and send feedback to the list :-)
>
>  
>
Jan.   This feature is simply fantastic!!  We have had this problem for 
2 years now and had been forced to do customized routing for many of our 
users.  We will try it our and let you know the results.

Thanks.
--

Andres
Network Admin
http://www.telesip.net