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Re: ISDN save the need for modem terminal !?



On Tue, 11 Jun 1996, Ze'ev Maor wrote:

> You're probably right, it's more important to have as wide as possible
> band (and a fast bus ofcourse, i.e. PCI), then a  long-distance-runner
> CPU, for serving ISDN.
bolony! the widest an ISDN Interface can get, in Israel or anywhere is an 
E1, called a PRI, which has 30 channels of 64k. that's 2mbit in total, 
which means it doesn't even begin to TICKLE the slowest ISA buses...


> > > is the most common standard for ISDN today, other than some American
> > > switches witch still give you single lines of 56k.
> > BTW - 56k seems to be the standard in the US.  I've never seen a 64k line
> > here.
look harder :-) they are slowly moving to the common european standards.

> > > get a multi-port card and connect 20,30, or even 40 people to the same
> > > machine, only make sure it's a Pentium first...
> > I don't know about that.  I used to work in a place where we served about
> > 25 modem sessions (9600 at the time) using a multiport card, and that was
> > on an ancient AT&T 386 (with 4 megs of ram).  This was not with Linux
> > (another 386 unix), but I doubt linux would require any real processor
> > power just to serve ppp over modems...
were those connections PPP? I agree that PPP is not a CPU eater in Linux, 
but you ARE talking about DTE speeds of at least 57,600, right?


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