[coco] Caller ID

[Gene Heskett]

On Sunday 12 February 2006 07:42, George's Coco Address wrote:
>----- Original Message -----
>From: "Aaron Banerjee" Sent: Sunday, February 12, 2006 6:42 AM
>
><snip>
>
>> Coco-related:
>>   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.
>
>http://picbasic.com/resources/callerid.htm
>
Its whatever the interface is set for.  NOT the telco line speed, but 
the speed the serial port is currently using.  On some modern modems, 
that could well be 115kbaud.
>George

-- 
Cheers, Gene
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Copyright 2006 by Maurice Eugene Heskett, all rights reserved.