The Cellar - View Single Post

SteveDallas · 02-20-2006, 09:35 PM

We're trying to set up a new video conferencing system. It's behind a router doing NAT. The call setup isn't happening because port 1720 isn't reachable from outside our network. (inside it works just fine.)

Our ISP swears they are not doing any filtering.

So if our router isn't blocking this incoming connection, what else could be throwing it away?

02-20-2006, 09:35 PM	#1
SteveDallas Your Bartender Join Date: Jan 2002 Location: Philly Burbs, PA Posts: 7,651	A stumper for the net gurus We're trying to set up a new video conferencing system. It's behind a router doing NAT. The call setup isn't happening because port 1720 isn't reachable from outside our network. (inside it works just fine.) Our ISP swears they are not doing any filtering. So if our router isn't blocking this incoming connection, what else could be throwing it away?