caller id

audioguru · Jan 15, 2019

Pommie said:
I do believe this is the first time I've actually witnessed AG saying something nice!!! Well done - keep it up - you'll get the hang of it soon.

Mike.

My country is much more multi-national now than when I was a kid when my race and culture were the majority. I am gradually accepting the new fact that my race and culture will soon be a minority in my country.

paivenkatesh1975 · Jan 15, 2019

paivenkatesh1975 said:
i want caller id circuit which works on telephone line. the circuit must be stand alone type which can be connected whenever required to the telephone line

I KNOW ITS READILY AVAILABLE. BUT DEVELOPING AND DESIGNING WILL BE CREATIVE IDEA.

Ramussons · Jan 16, 2019

There are 2 types for Caller ID. FSK and DTMF. I think you'll be interested in DTMF since this is what is used in India.

Try this: https://www.microsemi.com/document-portal/doc_view/127041-mt8870d-datasheet-oct2006

JimB · Jan 16, 2019

paivenkatesh1975 said:
I KNOW ITS READILY AVAILABLE. BUT DEVELOPING AND DESIGNING WILL BE CREATIVE IDEA.

Why did you not state that originally?
You added it to your original post this morning, four days later.

JimB

absf · Jan 18, 2019

Here's a block diagram of caller id using 8051 as controller and mt8870 decoder mentioned by Ramussons There are more informations here if you are going to roll your own.

caller id

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caller id

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