What protocol does Vonage use?

SIP, UDP, and RTP Protocols

Vonage uses these protocols to send and receive traffic.

Does Vonage require port forwarding?

If your Vonage adapter is located behind a router that has firewall capabilities, and you do not want to reconfigure your network, you may need to set up Port Forwarding for your Vonage service to operate properly.

Can I use any port for port forwarding?

Only one port forward can exist for every instance of that port. For example, if you forward port 3389 (used by the Remote Desktop remote access program) to a computer with the IP address 192.168. 1.115, that same router can’t also forward port 3389 to 192.168.

What is a good port to use for port forwarding?

For this to happen, you should have set up port forwarding. The router at home must be set up to direct all the incoming traffic at port 443 to gitstorage. TCP port 443 is the standard TCP port used for a website which uses SSL.