Date: Tue, 4 Feb 1997 11:52:03 -0800 From: "M.R.Murphy" <mrm@Mole.ORG> To: terry@lambert.org Cc: hackers@freebsd.org Subject: Re: bisdn Message-ID: <199702041952.LAA29465@meerkat.mole.org>
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> From owner-freebsd-hackers@freefall.freebsd.org Tue Feb 4 11:46:59 1997 > From: Terry Lambert <terry@lambert.org> > Subject: Re: bisdn > To: michaelh@cet.co.jp (Michael Hancock) > Date: Tue, 4 Feb 1997 11:53:48 -0700 (MST) > Cc: grog@lemis.de, terry@lambert.org, hackers@freebsd.org > > > > > Basic rate: 2B+D > > > > > > OK. Note the second question: what do you do with them? > > > > > > > US West: 2D+B > > > > > > Really? I find that hard to believe. I suppose the question is > > > doubly relevant here: What do you do with them? > > > > I find this hard to believe too, 2D channels is wierd. The D-channel is > > for out-of-band signaling. It's why you get 64K instead of 56K. > > See www.uswest.com. > >From http://www.uswest.com/atwork/interprise/isdn/isdn_htm/isdn_s2.html The architecture of Single Line Service can be expressed as 2B+D -- in other words, two B (or Bearer) channels plus one D (or Delta) channel. Where'd you get the reference to 2D+B? -- Mike Murphy mrm@Mole.ORG +1 619 598 5874 Better is the enemy of Good
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