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Date:      Sat, 21 Mar 1998 16:13:34 +0100 (MEZ)
From:      Rainer M Duffner <Rainer.Duffner@konstanz.netsurf.de>
To:        Brandon Lockhart <brandon@engulf.com>
Cc:        freebsd-newbies@FreeBSD.ORG
Subject:   Re: My QUESTION about ISDN ta's.
Message-ID:  <Marcel-1.42-0321151334-d07Zsav@duffner.konstanz.netsurf.de>
In-Reply-To: <Pine.BSF.3.96.980320144201.4082B-100000@engulf.com>

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On Fri 20 Mar, Brandon Lockhart wrote:
> I am looking into a digital line that with compression can receive
> 512kbps.  It is a dedicated connection so I would need a good terminal
> adaptor.  I have 2 or 3 questions to ask.
> 
> 1.  128kbps, using both B channels, with 4:1 compression would give
>     512kbps.  How would I go about actually using both B channels?  I was
>     told that this was a very hard procedure to do, unless you had an ISDN
>     Router (plus terminal adaptor combined).

I'm not an expert, but at that speed, wouldn't it be better to use an
ISDN-router that you can plug together with your network-interface ?
That way, it would use less CPU-time.
If you've got a leased line, the cost of an ISDN-router isn't that much
in comparison.

>     Is this true?  If so, how
>     hard. What do you actually have to do?  Do you use a program like
>     "ppp" to start the actual connection?

I think, yes. It has some options for keeping a dedicated line up.
Ask your ISP, if in doubt.

>     What?  If you know a good place
>     I can find ISDN answers for FreeBSD, please point me towards the URL.

There is an ISDN-mailing-list :-)

> 2.  Is anybody currently using an ISDN Terminal Adaptor and would
>     recommend there adaptor to me?  Like I mentioned above, if it is very
>     hard to use both B channels, does anyone have an ISDN Router (and
>     terminal adaptor combined) they would recommend for ease, stability,
>     and speed?

Better ask these questions on freebsd-isdn.
Again, if you've got a leased line, there's no point (IMHO) in using a
TA. It is intended for dial-up only, like a modem.


cheers,
Rainer
-- 
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|Rainer Duffner, E-Mail: duffner@fh-konstanz.de  |
|        &   Rainer.Duffner@konstanz.netsurf.de  |
|Fachhochschule Konstanz, Germany                |
|"What's a Network ?"  - Bill Gates, early 1980s |
|   WWW:http://www-stud.fh-konstanz.de/~duffner  |
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


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