[Asterisk-Users] Which asterisk-friendly cards are fax-capable?

[Tim Litwiller]

Bob Goddard wrote:
> On Wednesday 12 Oct 2005 14:53, Tom Rymes wrote:
>>> -----Original Message-----
>>> From: asterisk-users-bounces at lists.digium.com
>>> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of
>>> Bob Goddard
>>> Sent: Tuesday, October 11, 2005 6:35 PM
>>> To: Asterisk Users Mailing List - Non-Commercial Discussion
>>> Subject: Re: [Asterisk-Users] Which asterisk-friendly cards
>>> are fax-capable?
>>>
>>> On Tuesday 11 Oct 2005 22:41, Lee Howard wrote:
>>>> Tom Rymes wrote:
>>>>> Frankly, I would recommend that you forget about trying
>>> to fax with
>>>
>>>>> Asterisk. Buy a good Multitech analog modem and install HylaFAX.
>>>>>
>>>>> Use the right tool for the job!!!
>>>> Actually, you can use HylaFAX and Asterisk together.
>>>>
>>>>   https://sourceforge.net/projects/iaxmodem/
>>>>
>>>> Just be certain that your audio path doesn't run over any
>>> lossy medium
>>>
>>>> (so run IAXmodem on your Asterisk box).
>>> I'll expand on what Tom meant....
>>>
>>> Use a hardware based DSP for faxing not software based.
>> Actually Bob, that isn't what I meant. Lee simply suggested a different
>> way (IAXModem instead of analog modem) of implementing what I meant. I
>> would still recommend using analog if you can but, if you cannot, use
>> IAXModem from Lee.
> 
> Okay!
> 
>> Asterisk's faxing capabilities are not nearly as advanced, stable, or
>> easy to set up as HylaFAX. Also, there seem to be many problems with
>> frame slipping and the like that screw up faxing over Digium cards, and
>> maybe others as well.
> 
> Does Hylafax do software based faxing? As far as I knew, it has always
> required a DSP.

See IAXModem above for the soft DSP.



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