[Asterisk-Users] ata vs digium card

[Eric Wieling aka ManxPower]

Joseph wrote:
> On Sun, 2005-03-27 at 18:22 +0200, Torsten Krueger wrote:
> 
>>Hello,
>>
>>On Sun, 27 Mar 2005, Jim Sturtevant wrote:
>>
>>
>>>What are the advantages of the Digium PCI cards for FXS ports vs standalone
>>>ATAs?
>>
>>You can _reliably_ fax with them.
>>
> 
> 
> That maybe it.
> Though with new addition: NVFaxDetect feature ATA will have more
> advantages over PCI card.
> 
> Just makes me wander why Digium doesn't invest in ATA modules?
> They have all the hardware so what is the problem putting them into one
> box and make ATA
> 

Not always.  Even with an all Zap/TDM call path, you *may* not always be 
able to fax reliably.  I experienced this recently.  I SUSPECT it's 
interrupt latency, but have not been able to fully solve the issue yet.

--Eric