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Date:      Tue, 19 Mar 96 16:53:52 +0100
From:      garyj@frt.dec.com
To:        hackers%freebsd.org@inet-gw-1.pa.dec.com
Cc:        isdn%muc.ditec.de@inet-gw-1.pa.dec.com
Subject:   Re: ISDN: "modem" or board? (Was: Microsoft "Get ISDN"?) 
Message-ID:  <9603191553.AA07759@cssmuc.frt.dec.com>
In-Reply-To: Message from "Jordan K. Hubbard" <jkh@time.cdrom.com>  of Tue, 19  Mar 96 06:10:18 PST.

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jkh@time.cdrom.com writes:
[stuff deleted]
> 
> I've had mine on order from Teles for 5 months now.  Still no
> availability in the U.S.
>

boy, this is screwed up. Have you considered getting a pair of
Lion DataPumps ? See Julian Stacey's home page on freefall. These
look just like internal modems, support PPP on-board and channel
bonding too. AFAIK, Barry has an office in the US now.

Of course, it would be really nice if you waited Teles out so you
could test the ISDN stuff in the US :)

> The ADTRAN TAs are also nice in that they do channel bonding
> transparently.  You just configure the modem for bonding mode 1 and it
> automagically makes two outgoing calls and bonds the B channels
> together for a single "fat pipe".  I've talked with Helmuth a little
> about this and it doesn't look like it's anywhere near as easy to do
> with the TELES cards, though I may have misunderstood him.
> 

It's not a matter of the Teles cards not supporting it. They can handle
2 B-channels simultaneously w/o any problem. It's hacking it into
the kernel. What do we use as the protocol ? MPP ? BACP (unbelievably
ugly !) ? Home-made ?

> Oh yeah, the TAs also support standard Hayes dialing.  I'm not looking
> forward to figuring out how to use the dialer interface for the boards.
> 

nothing easier ! Just enter the incoming/outgoing phone numbers into
/etc/isdn and say "telnet the-other-guy" and, hey presto !, the
connection gets made for you. Well, you need a route and have to
configure the ii? interfaces, but it's no more difficult than setting
up SL/IP or PPP. This is IP on top of HDLC, totally transparent. Most
of the dirty work gets done in /etc/rc.isdn.


---
Gary Jennejohn				(work) gjennejohn@frt.dec.com
					(home) Gary.Jennejohn@munich.netsurf.de
					(play) gj@freebsd.org





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