Steve: I'm wondering if one day span_dsp will support T38, say we have a SIP provider that supports T.38 we should be able to recieve a good fax? Right now the fax is distorted a bit, I think because it does not support ECM?
On 10/20/06, Mohammad Shokuie
<[EMAIL PROTECTED]> wrote:
Hi Steve,
As a matter of fact, you've done a greate job in writting this library, no
doubts. I really dont know rxgain = 12 makes that much distortion but I'm
curios to know if I pass through the incoming fax to an analog fax machine
on another fxs line, the machine wouldn't receive the fax too?
Anyways, let me take the most benefit as im sure you'd read this post, i
have problem with the size of received page which is shrinked, can u give me
a hint about this problem too :)
Thanks.
---
M. Shokuie Nia
>From: Steve Underwood <[EMAIL PROTECTED]>
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>Subject: Re: [Asterisk-Users] rxfax problem
>Date: Fri, 20 Oct 2006 20:20:18 +0800
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>M. Shokuie Nia wrote:
>
>>Dear folk,
>>
>>My problem solved after two day research and try and error method ;). It
>>was
>>related to rxgain of the board im using. I've set the rxgain to 12 and it
>>seems made some problem. As far as I got the spandsp is so sensitive about
>>noise on the line and because of that it couldn't hand shake with other
>>side
>>well.
>>
>>
>>
>rxfax isn't sensitive to noise at all. At a gain of 12 you've caused
>overloading and distortion, and the signal cannot be decoded. Many people
>seem to be nearly deaf. They run systems at massive gain with awful
>distortion, and seem content until they find something like a modem or DTMF
>detection doesn't work too well.
>
>Steve
>
>
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