[Asterisk-Users] Best drivers for HFC-S ISDN cards

[Armin Schindler]

On Mon, 26 Sep 2005, Roy Sigurd Karlsbakk wrote:
> > It seems that HFC-S cards can be connected with asterisk in a few
> > different
> > ways - isdn4linux, mISDN, chan_capi or zaphfc. I've tried isdn4linux
> > (severe
> > echo, reproducable on every inbound call) and zaphfc (intermittent echo,
> > disappears within about 30 secs of the call starting).
> > 
> > What's the recommended way to hook up these ISDN cards? Is switching to
> > capi
> > or mISDN likely to remove the echo problem completely, or is this one of
> > those things one has to accept?
> 
> CAPI doesn't work with this card. mISDN should work, but zaphfc should prolly

If mISDN does work, then CAPI (chan_capi) can be used for this card too, 
because mISDN provides a CAPI interface.

Armin

> be fine as well. isdn4linux will probably work, and give you a long term
> headache, nausea and possibly hemroids. you may want to tune the echo
> cancellation in zaptel (echocancel=256 or something) to see if that helps...
> 
> roy
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