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Re: How do dialup ISPs allow multiple clients under one access number?
On Monday 24 November 2008 00:14, John Musbach wrote: > I'm interested in figuring out how dialup ISPs work and have found > plenty of info on dialin server setup but not much on how ISPs allow > multiple clients under one access number, how do they do it? One phone number != one phone line. Each phone circuit has a single associated billing/account number. Notice I say circuit, not line, which is 1 or more channels over some medium. It may be a single line POTS, a 2 channel ISDN, a 23/24 channel T1, a 600+ channel T3, etc. In addition to the account number, one or more additional phone numbers can be directed at that account or agroup of accounts, either as a direct routing to a particular channel(s) or a roll-over between groups of various accounts. A call to a phone number is therefore is directed at a particular account number which, if all channels are busy, may roll on to other account numbers in the group. Adrian