[asterisk-users] Re: Question about DSP in Digium card

[Matthew Fredrickson]

On Mar 27, 2007, at 8:35 AM, Salvatore Giudice wrote:
> As for the DSP, you are right to be concerned about the Digium cards, 
> but not because of the DSP. The DSP is not where you will run into 
> problems. Digium cards feature 2 year old circuitry and do not play 
> well with other devices. You have to take care not to share interrupts 
> with any components that may be active on that system. Sharing an IRQ 
> between a Digum card and an Ethernet card would certainly spell 
> disaster in my experience.
>  
> From personal experience, I no longer use Digium hardware since I 
> could rarely push a quad port card to more than 13 channels per T1 
> circuit without the card failing miserably. HDLC aborts abound.

FWIW, there have been some recent improvements in the drivers and 
firmware which correct most of the old IRQ sharing and HDLC problems of 
that nature.  If you have any more such problems, be sure to let tech 
support know so we can get it fixed.  We are anxious to keep your 
business.

Matthew Fredrickson