[X4U] ISPs, DSL, dhcp vs. PPPoE, and VOIP

[Jeff Carruthers]

On Dec 5, 2007, at 7:50 PM, Jim Robertson wrote:

> <snip> Would I be able to send and
> receive FAX transmissions on the VOIP "virtual" line? <snip>
>
> Jim Robertson


JIm: I'm only going to address one of your questions.

As far as sending faxes over a VOIP telephone line, I am able to do  
this using a Vonage service, but the VOIP runs over a fast 10 Mbps  
cable highspeed internet service via Cox. I was not having much  
success sending faxes with the initial service, which I believe  
provided only 1.5 Mbps. The problem, I believe, was the upload speed,  
which was a maximum of 256 Kbps. Also, if there was any serious  
downloading taking place on any computer on the network, the VOIP  
service degraded seriously and faxes would fail.

If you get one line with DSL and a second line with VOIP, both from  
ATT, it would be important to ensure that the two services are  
running separately and that you in fact are not getting the VOIP  
service using the DSL on the first line.

Given everything, my advice would be to see if there's a way to test  
the fax on an ATT VOIP line before paying for it.

Hope this helps.

Jeff

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