[COLUG] Business net access in Dublin

[Duane]

Dave wrote:

> In general, faxing over VOIP is not reliable. As I understand it, there
> is a protocol called T.38 for faxing over voip (see on of links below)
> Is there a reason they absolutely have to use VOIP for faxing? I would
> be tempted to use one of the fax to email providers such as efax.com (I
> don't know which is the best one). Or just get a regular phone line for
> faxing.

You beat me to it, the problem isn't VoIP so much as the calls use
compression of one sort or another, T.38 can get around this BUT you
need a provider and a SIP adapter that support T.38 and you need to make
sure the call uses ulaw for the initial setup, otherwise the fax tones
get garbled and the other end doesn't think its a fax call.

I don't know about the US, but in Australia Telstra has a local call
number to do Fax testing, you send it a fax and it tries to send errors
down the line to see if anything breaks etc.

-- 

Best regards,
 Duane

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