Softphone blocked does not work behind firewall

Posts: 10 · Vonage Forum Associate Joined: Feb 27, 2006 Posts: 10

I got Softphone running at home and I loved it.

However, when I tried to use it at work. I found first I was unable to log in. After a whole hour of talking to Vonage tech support person in India, who doesn't understand what is going on, wasted a whole hour of my time trying to make sure there is nothing wrong with my Internet connection regardless of many times I told him that I was looking at my Vonage account page while talking to him.

Mind you, I am sure I know the problem, as I kept asking him to find out what TCP/IP or UDP port number needs to be open before the Softphone can "log in".

Finally, after one hour, he decide to transfer my call to someone else. The new person, still don't know that TCP/IP or UDP port meant, but at least after 10 minutes of asking me to check around, he finally went and looked up or asked someone else and came back to port 5061.

Now I can log in, but I am still unable to connect whenever I tried to make a phone call. Got Call failed: 408, Timeout.

Anyone know which TCP/IP or UPD port need to be open for the Call to go thru?

Thanks

Jml

Posts: 3 · New Forum Member Joined: Aug 04, 2007 Posts: 3

Ports used by Vonage Adapters

The following ports are needed for OUTGOING Internet communications from the Vonage device to the Vonage servers.

DNS: Port 53 UDP

TFTP: Port 21, 69, 2400 UDP

HTTP: Port 80 UDP

NTP: Port 123 UDP

SIP: Port 5061 UDP (used for older Vonage devices provisioned before 2005)

The following ports are needed for INCOMING and OUTGOING Internet communications from and to Vonage devices and servers.

RTP (Voice) Traffic: Ports 10000-20000 UDP. When a call is made, a random port between 10000 and 20000 is used for RTP (Voice) traffic. If any of these ports are blocked, you may experience one way or no audio.

If you would like to read more about port forwarding, please visit www.portforward.com.