I just read the article describing how to get Vonage to work without dropped calls using port forwarding on a RVxx. I have an obi110 and am trying to get it to work properly without dropping the call. The solution should be the same as vonage, but I'm not sure which ranges and ports to specify. Used in conjunction with GoogleVoice, the other person on the line can hear me throughout the conversation, but frequently I cannot hear them. This primarily manifests itself when I have another computer on my network. I have 3mbps D/L and .77 U/L (speedtest.net) and have an active VPN tunnel on the rv042 (this happens even when I disconnect the tunnel). The system runs fine when there are no other computers turned on, so I do believe it is a port forwarding issue. Does anyone know which ports/ranges of ports to use with the Obihai system? Would it be the same method as described in a previous post which referneced the following URL: http://portforward.com/english/routers/port_forwarding/Linksys/RV082/Vonage.htm ?