[Asterisk-Users] How does Vonage support fax machines?

[Deon]

So they're doing it just like anybody else would, nothing special and
nothing rock-solid.  

A person with a not-so-good high speed internet connection, who is able to
push norma voice calls perfectly, would have just as much problems sending
faxes via Vonage as a PAP2-NA connected to Asterisk and some Voice T1's.
Vice versa, a person with a great internet connection should be able to
push faxes just as reliably through our setup vs Vonage. 

We have a lot of our own remote agents in the field, and we've been giving
them adapters so they can handle sales/service/support calls from home.
Some of them require a fax machine for invoices or whatnot and we've been
telling them to use their regular home line, and if it's long distance
they have to go through a procedure to get reimbursement, we're trying to
simplify their (and our) lives by using these converters.

--- Lee Howard <faxguy at howardsilvan.com> wrote:

> Deon wrote:
> 
> >My boss is insisting we support fax, and I keep telling him that Fax
> over
> >IP is very unreliable and not recommended and his immediate come-back
> is
> >"Vonage does it." and it's very hard to figure out how.
> >
> >I don't think Vonage does T.38, the Linksys/Sipura units they're using
> >doesn't support T.38 to my knowledge. 
> >
> >That means they have to be using G.711Ulaw to send faxes. But how do
> they
> >compensate for packet loss/jitter/etc.
> >  
> >
> 
> They rely upon the resiliance of the fax endpoints... which means that 
> you will have great success with resiliant endpoints and high-quality 
> connections and you'll have fair-to-poor success with anything else.
> 
> Lee.
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