Dear KanwarOn a normal dial-up telephone line only single person can log in. If a second person tries to access the same line, he will get a busy tone. So if you have a dial in Linux box with one modem then only one person can log in.
On the other hand VSNL has number of telephone lines (around 2000 or so) and most of them are hunt lines which means that a single number for say 100 lines. These lines are connected to the routers. So when you dial to VSNL on 4404444, the call lands up on any free line of the 4404444 hunt group and then the communication gets established.
You are getting confused because when you see everyone dials only one telephone number so you must have felt that multilpe people can login on simultanously on single line which is not possible.
The closest example for multiple calling on single line is ISDN where you could have two simultanous calls on a single line.
Hope I have sorted out your confusion. regards, Vaibhav
From: "Vicky Plaha" <vkey@xxxxxxxxxx> Reply-To: linux-india@xxxxxxxxxxxxxxxxxxxxx To: linux-india@xxxxxxxxxxxxxxxxxxxxx Subject: Re: [LI] M L D N Date: Mon, 01 Nov 1999 04:27:22 PST Hi, Thanks Vaibhav for that info. There's something that's at the back of my mind...and silly again! Suppose i set up dial-in service to my Linux box using mgetty and if i have only one modem, is it possible for more than 2guys to log in? I mean, how does VSNL server work? Once i login and run ppp,the incoming device to the server should be free if another person has to log in...otherwise maybe only 500 people can browse at the same time! So, how does it give service to more than the number of incoming devices? I am probably unable to express it amply, but i hope u get the point. Do reply asap. Thanks. Kanwar
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