[Asterisk-Users] Asterisk and USB ISDN controllers ...

Steven Critchfield critch at basesys.com
Fri Mar 11 09:11:00 MST 2005


On Fri, 2005-03-11 at 11:31 +0100, Vledder, Hans wrote:
> Hi Steve,
> 
> >Since you don't mention what USB ISDN adapter specifically you are
> >thinking about, what do you think we will be able to tell you.
> 
> All I know about the adapter is what I've told you. It's a USB Colognechip
> based ISDN controller - probably HCF-USB based. It's supported by Linux, but
> there's no info on access to B and D channels.

Okay, this shows where you should do some research. Just to point out
how easy it is to find out the answer, watch the steps.

1. use google to look up cologne isdn usb linux
2. follow link that points to the actual manufacturer
3. Notice that the usb driver is the hisax driver
4. use google to look up hisax site:lists.digium.com
5. notice how many people are already discussing the use of it.
6. follow a couple of posts.
7. conclude that it is possible to use.

optional steps
8. think about how little time and effort it took to follow the above
pattern to quickly answer questions on your own.

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com]On Behalf Of Steven
> Critchfield
> Sent: Thursday, March 10, 2005 6:42 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] Asterisk and USB ISDN controllers ...
> 
> 
> On Thu, 2005-03-10 at 18:13 +0100, Vledder, Hans wrote:
> > Guys,
> > 
> > I am planning on building a small SIP PBX with a single ISDN line.
> Currently
> > I am looking into the specs of a very tiny barebone system that has an
> > option Colognechip base ISDN controller. The only thing is that the ISDN
> > module that comes with this barebone hooks up to the motherboard using
> USB.
> > My intention is to allow incoming and outgoing calls from SIP to ISDN. Is
> > this setup in any way supported by *?
> 
> Since you don't mention what USB ISDN adapter specifically you are
> thinking about, what do you think we will be able to tell you.
> 
> The first step would really be to ask if your specific ISDN adapter can
> be used under linux. After that, can that specific ISDN adapter give
> access to voice channels. What method is used to get access to the audio
> and the signaling.
> 
> It may well be usable if the drivers for it implements the same API as
> the current ISDN cards in use support.

-- 
Steven Critchfield <critch at basesys.com>




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