Subj : Re: hackers
To   : Taphophile
From : ogg
Date : Sun Jan 08 2023 02:17 pm

On 08 Jan 2023, Taphophile said the following...

Ta>   Re: hackers
Ta>   By: Mewcenary to Alonzo on Sat Jan 07 2023 05:57 pm
Ta>
Ta> Back in the day, I had a friend who hosted CHRIS-CO BBS (his name is
Ta> Chris) and he wrote a script for his VBBS6.14/VAdvanced 2.10 board that
Ta> new users had to input the phone number they were calling from, and the
Ta> board would disconnect them and then call that number and somehow (i
Ta> don't remember the details) verify that it was a legit caller. I think
Ta> you could have your dialer software open and answer an incoming call? I
Ta> really don't remember I wasn't even driving back then I was a kiddo. I
Ta> thought that was real neat though! He had a number of scripts written,
Ta> and even wrote his own net "CHRIS-NET" that all the local boards were
Ta> apart of. I don't know what ever happened to that dood. His handle was
Ta> "Computer Whiz".
Ta>
Ta> Taphophile

The phone modems of that period were used to communicate in 2 directions. Obviously, you could get incoming to your BBS.  But you used them when calling to another BBS.  This "feature" of verifying a user was actually quite common.  Look here "http://www.pcmicro.com/support/modem_at_commands.html" for the specifics of using "Hayes" compatible Modem AT commands.

... There are two types of people; those who finish what they start and

--- Mystic BBS v1.12 A48 (Windows/64)
* Origin: Altair IV BBS (21:2/147)