[Asterisk-biz] 4xT1/E1 cards on SALE!

[Andrew Kohlsmith]

On Friday 23 December 2005 21:36, BJ Weschke wrote:
> time. They give a processor in the machine a run for its money and
> then some by bombarding it with interrupts. Cards work, about as well
> as the 1st gen Digium cards did, performance wise.  What have you done

I was not aware that any Digium card has done anything to reduce the interrupt 
load.  It's always been 1000 interrupts/second.  What the newer Digium cards 
do to help system load is to utilize PCI bus mastering and, in the case of 
the VPM-aware cards, hardware echo cancellation and DTMF detection.  The 
newer cards also have provisions for handling all the HDLC processing 
on-card, further reducing processor load.

-A.