[asterisk-users] ATA with reliable FAX?

[George Pajari]

Curt Shaffer wrote:
>
> I am looking for an ATA that has had very reliable results when 
> passing FAX over IP. I was thinking of testing the Cisco (not Linksys) 
> ATA 186 I1, ATA 186 I2, ATA 188 I1. This is what I’m looking for:
>
> FAX -> PTSN -> through Asterisk -> ATA -> Fax Machine.
>

(a) If you are not running a version of Asterisk that has working SIP 
jitter buffering (is there such a thing?), then abandon all hope now.

(b) We have no experience with the Cisco ATAs, but the Linksys (nee 
Sipura) SPA-210x is markedly better than the SPA-100x and SPA-200x, 
probably because they have better jitter buffering (it goes without 
saying we do not pass our fax traffic through Asterisk).

(c) T.38 is the way to go, G.711 a poor and distant second choice 
(again, Asterisk's T.38 pass-through is far from ready for prime time).

g.

-- 
George Pajari, netVOICE communications    604 484 VOIP (484 8647 x102)
Open Source VoIP/Telephony Specialists  1 877 NET VOIP (638 8647 x102)
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