From: Tom Hansen 
Subject: Re: Telnetting w/ PB ?
 
Marc van den Dikkenberg wrote:
>
>
> Telnet is nothing more then a dial-up connection...
>
> I can 'telnet' by using any plain terminal program to dial my providers
> number... The systems on their side should be smart enough to detect that
> you're using a terminal connection.
 
 
This is NOT true.
 
 
'Telnet' is a specific internet protocol that behaves very much like a
dial-up connection.  Except that it isn't.
 
'Telnet' is used over an existing Internet connection to, among other
things, emulate what a dial-up connection does.
 
'Telnet' works over an existing Internet (TCP/IP) connection.  As with
other protocols such as HTTP and FTP, it can SHARE this link with other
protocols simultaneously.  Thus you can have a 'telnet' session open at
the same time as you are retrieving web pages via HTTP, and also
downloading a file via FTP.
 
A dial-up connection, on the other hand, uses the entire connection for
the terminal session.  It uses up a whole modem on each end, and the
whole telephone connection.  No other communications is possible over
the line while the dial-up connection is in progress.
 
I could go on, but I think you get the idea.
 
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