Cermetek CH1786A & Caller-ID

PJAllen

I want to do a Caller-ID project.· I want to, of course, decode the Caller-ID data.· It's 1200 8N1, FSK (Mark = 1200 Hz = 1, Space = 2200 Hz = 0).

Can't find any Caller-ID ICs (like the MC145447.)
·
Maybe I could dink around with a tone decoder (1200 = 1, anything else = 0)?

Maybe I could use the CH1786A?· Can it be configured so that it is always "off-hook" without actually engaging the C.O.?

FSK demodulator, FSK demodulator,...

·

steve_b

Can you get the hold of an old phone with call-ID? or even the old stand-alone units from when it was first introduced?
You should be able to hack it!

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Steve

"Inside each and every one of us is our one, true authentic swing. Something we was born with. Something that's ours and ours alone. Something that can't be learned... something that's got to be remembered."

Orion

I found a callerid box on ebay that has a simple rs232 output. It's called the NetcallerID, it's no longer made but can be found. I think I paid around $15 for it.

PJAllen

Buy something on ebay??···· No way.

I found that XR2211 FSK demodulator ICs are still available (and XR2206 FSK generator ICs, too.)· I think I can cobble this together.· Part of a system where people who are on My List get routed to WWV, stuff like that.

John Couture

PJ,

A project that comes to mind is a device that records the incoming tel # from one of those spam faxes and then constantly calls them back asking to be removed from the list .... as least that way you could tie up their line! LOL

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John J. Couture

San Diego Miramar College

PJAllen

One·after mine own heart.

Hence, "...stuff like that."

I'm as mad as heck and I'm not gonna take it anymore.