Mara.

The router is just a cheap Linksys. I am unsure of the number off the top of my head. This shouldn't be the issue, however, as I am able to connect via the regular Gizmo client on both my N800 and my 770, Skype on the N800, and via Truphone and Gizmo on my N80. We are talking about my home office, so the router is directly connected to my ISP. The other wireless router (upstairs and on the other side of the house) is also connected directly to my ISP. Both routers work with the aforementioned SIP (or semi-sip) applications. Would it stand to reason that the other applications wouldn't work if the port forwarding wasn't set up properly?