Two telephones have two telephony links... and they can be linked together
using a bus... but without POTS service, they can't call each other, can
they. All the bus does is enable multiple ISDN devices to be able to
connect to the ISDN service (which is provided either by a telco or a
simulator).
And yes, I visited the URL you posted. The ISDN BRI service and ISDN cloud
are key components of that excerpt.
-- Leigh Anne
> -----Original Message-----
> From: Daniel Cotts [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, September 11, 2001 10:40 AM
> To: '[EMAIL PROTECTED]'; [EMAIL PROTECTED]
> Subject: RE: Back to back ISDN [7:19414]
>
>
> Yes, but an ISDN BRI line has two B channels. A POTS line has one channel.
> Did you visit the URL in my previous post?
>
> > -----Original Message-----
> > From: Leigh Anne Chisholm [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, September 11, 2001 11:36 AM
> > To: Daniel Cotts; [EMAIL PROTECTED]
> > Subject: RE: Back to back ISDN [7:19414]
> >
> >
> > Let me give you an analogy as to what you've described. I
> > take a little
> > gizmo that splits my telephone outlet into two outlets (I use
> > one of these
> > for my answering machine and telephone). I can plug two
> > telephones into the
> > gizmo, but can they call each other? Without telephone
> > service, no. But I
> > have my own bus where I can connect multiple telephony devices...
> >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of
> > > Daniel Cotts
> > > Sent: Tuesday, September 11, 2001 10:34 AM
> > > To: [EMAIL PROTECTED]
> > > Subject: RE: Back to back ISDN [7:19414]
> > >
> > >
> > > See the following:
> > > http://www.isdnzone.com/info/bri.htm
> > >
> > > As I mentioned in a previous off line post, if you have an NT-1
> > > device with
> > > multiple connection points (s bus?) then you can connect several
> > > devices to
> > > it. Configure each with its own B channel SPID. I have not
> > done this but
> > > everything that I read indicates that it can be done. Try it.
> > >
> > > > -----Original Message-----
> > > > From: Rick Harville [mailto:[EMAIL PROTECTED]]
> > > > Sent: Tuesday, September 11, 2001 10:15 AM
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Back to back ISDN [7:19414]
> > > >
> > > >
> > > > I have received several responses sofar expressing a great
> > > > interest in the
> > > > solution. Back to back ISDN over a single ISDN line seems
> > to be a very
> > > > acceptable approach to simulating DDR. Unfortunately, nobody
> > > > seems to be
> > > > able to confirm that it can be done. A seach of archives
> > > > reveals discussions
> > > > but no real verification that this is possible. The p If
> > > > anyone has actually
> > > > done this please respond as there seems to be a great
> > > > interest in doing this.
> > > >
> > > > Once again, the question is, can you connect two BRI (st)
> > > > interfaces through
> > > > a NT1 device using only a single ISDN line?
> > > >
> > > > I have 2 Cisco 2503's with st Bri. Im using Motorola NT1
> > device with a
> > > > single U interface and 2 ST ports. I have at my disposal a
> > > > single ISDN line
> > > > from SW Bell. I would like to split the spids at the nt1
> > > > device and practice
> > > > my DDR with only one spid on each router.
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=19442&t=19414
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