Telephone line cannot register to the Vonage Network

Posts: 193 · Vonage Forum Master Joined: Feb 28, 2005 Posts: 193

neo351 wrote:

Comcast is actively pushing us to switch over to their Voip before they shut down Vonage on their network.

Did Comcast tell you they were shuting down Vonage?

Posts: 5 · New Forum Member Joined: Jan 19, 2007 Posts: 5

I do not believe Comcast is shutting down Vonage.......and besides why would they cut your download speed when that would be a breach of their contract.....I can see blocking Vonage's ports but not chopping your download speed.....

something else is going on there.....

Posts: 1327 · Vonage Forum **MVM** Joined: Nov 08, 2006 Posts: 1327

Is Comcast allowed to block the ports?

I found this on the Vonage site:

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.