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I've had the same problem recently. It does one of the following:

1. Doesn't show up at all, unknown number
2. Shows up as something crazy like 39000000000000000 or 8523242347234
3. Works as ...

The only reason you would want to use a static IP on the internal network is to ensure the port forwarding consistently points to the Vonage adapter. Using DHCP may assign the Vonage IP address to a ...

Keep in mind that these two charges are NOT mandated by any government entity:

Regulatory Recovery Fee $1.98
Emergency 911 Cost Recovery $1.98

Vonage charges these simply because they can, not ...

On that platform, make sure you're running the Advanced IP Services feature set. That command uses nBAR for the protocol classification, which is only available in that feature set for the 871.

In ...

Thanks for the info Celeron.

If you're using an IOS device (12.2.8T or higher) for QoS, you can use:

match protocol rtp audio

in your class-map and you don't have to worry about matching the ...

Hi everyone,

Since I got Vonage about a year ago I followed the UDP port range guidelines specified in the following document:
http://vonage.com/help.php?article=1098&category=44&nav=3

...

You need to fragment with VoIP on any upspeed link slower than 1.5mbps. Technically anyway.

Slower than 1.5mbps and that actual time it takes to physically put the data on the line can delay voice ...

I also have an 871. However, I'm using a Linksys RTP300 instead of the Vtech device. It works just fine. I don't have any static nat translation or any other ports open for it to work.

Can you s ...

For what its worth you can get your SIP credentials off your adapter with relative ease. I won't go into details, but I have an RTP300 and using the credentials I found there I registered my Cisco AT ...

How do you tell whether or not the QoS is actually working? Simply enter the command "show policy-map interface" from enable mode on the router. You will see output like this. I'll explain each sec ...