[coco] Caller ID
webmaster at coco3.com
Sun Feb 12 14:14:37 EST 2006
At 06:42 AM 2/12/2006, you wrote:
>----- Original Message ----- From: "Aaron Banerjee" Sent: Sunday, February
>12, 2006 6:42 AM
>> Many years ago, there was an article in "Electronics Now" that showed
>>the format for (telephone) caller ID. It was a series of signals sent
>>between rings that happened to use 1 cycle at 2400hz to be "1" and one
>>cycle 1200hz to be "0". The format only accomodated for a number. Does
>>anyone happen to know the current format for caller ID? I had thought at
>>one time to use the coco cassette to build a soft caller-id box (you could
>>have fun with that one -- IF NUMBER="telemarketer" then HANGUP). I was
>>thinking of using the ring signal (of course adequately protecting the
>>coco against it) as some sort of trigger.
>> I was hoping someone on the list had a more modern knowledge of this
>>type of thing than me. Any insight would be appreciated. Thanks.
>> - Aaron
>I too, had thought of doing something like this.
>When I read this, a bell rang and I decided to do a search for info on the
>caller ID (CID) thng.
>This link does not reveal the baud rate. It does show the format.
Back around 1995 I built a system consisting of two CoCos, an external
modem with Caller ID capabilities, and a long 4-wire phone line running
through my apartment along the wall.
CoCo 1 in my office room used a small ML routine from BASIC using the USR
function to wait for modem messages. The BASIC program would lookup the
returned phone number in a local database (DATA statements) to replace the
caller's name if I wanted to, but in either case the # and a name would be
shown on my TV screen in the living room.
The living room CoCo was hidden in the entertainment center and was always
in CLOADM mode. CoCo 1 would CSAVEM a packet to CoCo 2 whenever the phone
rang, and CoCo 2 would show the info on a black screen using large white
characters (using my unreleased Video Titler program).
All I had to do when someone called is use the remote control's INPUT
button which switched to the Video IN channel and voila... caller
revealed. At one time I think I even used my Speech Sound Pak to speak the
name of the caller, but it took too long for this whole process so I
ditched the idea.
When friends would come over and see that, they would all freak out and ask
where in the hell could they get one of those. :) Ofcourse, nobody ever
really knew of my programming skills except my wife so I usually didn't go
into detail about things that would only baffle them.
The absolute best use of this system was that (I can't believe I'm
revealing this info) I could find out what pay phone people were calling me
from in town. I drove around one weekend and wrote down all the payphone
#'s and locations and I used this to replace the caller's name so that it
said, "Payphone, EZ-Mart - E. Main St." or "Wal-Mart Payphone", etc. See,
back in 1995 I was kinda dating more than usual and I would frequently get
calls from friends and female friends getting in my business or just
bugging the heck out of me, so I would sometimes know more than they knew I
knew and I could tell how far they were from my house, etc. and use this to
my advantage if I needed to. In fact, I printed each call out. I could go
out of town for 3 days and come back and yank a hardcopy from the printer
showing exactly what had been going on.
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