[Freeswitch-users] Scanning my firewall for open UDP ports?

[Joseph L. Casale]

>Thanks for the info but I'd like to run a test from the Net to see if the
>NAT firewall did open the required ports for SIP/RTP. I don't have a second
>PC elsewhere on the Net where I could aim nmap at my home ADSL modem/router.

http://www.t1shopper.com/tools/port-scanner/

One of the few that allow you to scan an ip that's not yours...