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From: Hans Petter Selasky <hselasky@c2i.net>
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Date: Tue, 25 Apr 2006 08:36:06 +0200
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Cc: Arne Steinkamm <arne@steinkamm.com>,
	Asterisk on BSD discussion <asterisk-bsd@lists.digium.com>
Subject: Re: [Asterisk-bsd] Asterisk on FreeBSD + Passive ISDN BRI
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Hi,

>
> The cheapest cards working with asterisk are the HFC-S based cards (less
> than 20 EUR / Dollar) but be advised, that this cards are real IRQ bombers.
>

How many IRQs per second do they generate? This is most likely a driver issue. 
My drivers only generate 20 interrupts per second, and that is not very much.

--HPS