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PICList Thread
'Caller ID project'
1998\10\05@010358 by Norayr S. Elmayan

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Any body has worked on DTMF & FSK caller ID project with PICs?

Please reply privately.

Thank you

1998\10\05@122806 by jhealy

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Actually, I have an interest in this topic as well.
Any reply that could be sent to the list would be
appreciated.

Thanks,

John

Norayr S. Elmayan wrote:
>
> Any body has worked on DTMF & FSK caller ID project with PICs?
>
> Please reply privately.
>
> Thank you

1998\10\05@144423 by Alberto Smulders

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Caller ID circuit with only 2 IC's - MC 145447 and MAX 232 - for interfacing
to COMM port of PC - See Circuit Cellar Ink # 69 (April 1996), pages 18..20.

Regards,

Albert A. Smulders
InSAD - Encarnaci—n, Paraguay
spam_OUTinsadTakeThisOuTspamitacom.com.py

-----Mensaje original-----
De: John <.....jhealyKILLspamspam@spam@idirect.com>
Para: PICLISTspamKILLspamMITVMA.MIT.EDU <.....PICLISTKILLspamspam.....MITVMA.MIT.EDU>
Fecha: Lunes 5 de Octubre de 1998 14:28
Asunto: Re: Caller ID project


{Quote hidden}

1998\10\05@151431 by Alberto Smulders

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Another article in Circuit Cellar Ink (#83, June 1997, pages 20..25): "On-
and Off-Hook Caller ID Using DSP".

Regards,

Albert Smulders
InSAD - Encarnacion, Paraguay
EraseMEinsadspam_OUTspamTakeThisOuTitacom.com.py

By the way, IMHO Circuit Cellar Ink is the BEST journal about hot electronic
engineering topics and computer applications on the market today, well worth
the money for a subscription !!! (hmmm.... I have no personal interests in
the firm, I'm simply a very satisfied reader....)

-----Mensaje original-----
De: John <jhealyspamspam_OUTidirect.com>
Para: @spam@PICLISTKILLspamspamMITVMA.MIT.EDU <KILLspamPICLISTKILLspamspamMITVMA.MIT.EDU>
Fecha: Lunes 5 de Octubre de 1998 14:28
Asunto: Re: Caller ID project


{Quote hidden}

1998\10\05@151436 by Quentin

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Maybe this will be of help:
http://www.ee.washington.edu/conselec/A95/projects/jjblome/links.htm

Quentin

1998\10\05@181525 by Scott Dattalo

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Alberto Smulders wrote:
>
> Caller ID circuit with only 2 IC's - MC 145447 and MAX 232 - for interfacing
> to COMM port of PC - See Circuit Cellar Ink # 69 (April 1996), pages 18..20.

Caller ID with one PIC and one LM324, but I can't show you :(. But I can
give you some hints:

http://www.interstice.com/~sdattalo/technical/theory/dtmf.html

However, to be completely honest, the caller ID I worked on had other
portions too. The Pic and the LM324 support only a subset of the
'system'.

Scott

1998\10\06@035544 by Norayr S. Elmayan

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I am looking for two engineers , who live in different countries and have
access to the following:

a)      Emulator & probe for PIC16C57
b)      Have CID service in your respective country
c)      Type of signalling available in your country FSK & DTMF

I have designed the system and soon we will protototype the pcb & start
writing the code, but as you can see I have no means of testing the system
in my country.  Each one of you will subscribe to the service, (In the
States it is roughly 6 dollars per month) & debug the software.  I think it
is a very cool project and if youre interested send me an email.

You may also reply in private in order not to traffic the group.

regards,

ses electronics

1998\10\06@042928 by - Underwater Acoustics Group

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At 10:54 06/10/98 +0300, you wrote:
>a)      Emulator & probe for PIC16C57
>b)      Have CID service in your respective country

Are you aware that there are different flavours of Caller ID?  This may be
what you are referring to in c) below, but there are two independent and
incompatible systems in use by different telco's in the UK alone.

>c)      Type of signalling available in your country FSK & DTMF

>is a very cool project and if youre interested send me an email.

Definitely interesting- I know a couple of people on uk.telecom are doing
something similar- if I had a), I might be interested in helping ;-)

Nigel
--
Nigel Orr                  Research Associate   O   ______
       Underwater Acoustics Group,              o / o    \_/(
Dept of Electrical and Electronic Engineering     (_   <   _ (
    University of Newcastle Upon Tyne             \______/ \(

1998\10\08@064557 by Norayr S. Elmayan

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The UK standard is completely different for caller ID.  Even for the DTMF,
there are four types, FSK two types.  However, I believe with PIcs they
could be achieved.

Norayr

1998\10\08@092231 by Ralph Landry

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>Any body has worked on DTMF & FSK caller ID project with PICs?
Hello, I haven't tried using a PIC yet, but for the caller id circuit I use
the Aptek caller id hybrid, you can find some info at http://www.aptekw.com and
look for the AMS3144.   I have about 100 of them here.  They are neat in
that all the DAA is built on board.  You only need two external caps to
hook to the tip and ring of the phone line.  And the data is sent serial
to your device.  I found these much better than using other caller id parts
as they usually need a good handful of external componets and xtals.

If you only need a couple to play with I can sell you some at $8.00 each
with the caps included.  Let me know if you need more info or if I gave
the wrong web address for Aptek.
-Ralph
RemoveMErlandryTakeThisOuTspamhaywood.main.nc.us
"If they call it Tourist Season why can't we shoot 'em?"
ICQ# 19545315

1998\10\15@101642 by mtt

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Hi Norayr:

I might not be a suitable candidate for testing your caller ID,  the call
standard is "DTMF".

Regards,

Mike DeLong

"Norayr S. Elmayan" wrote:

{Quote hidden}

1998\10\31@015948 by Scott Dattalo

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Alberto Smulders wrote:
>
> Caller ID circuit with only 2 IC's - MC 145447 and MAX 232 - for interfacing
> to COMM port of PC - See Circuit Cellar Ink # 69 (April 1996), pages 18..20.

Caller ID with one PIC and one LM324, but I can't show you :(. But I can
give you some hints:

http://www.interstice.com/~sdattalo/technical/theory/dtmf.html

However, to be completely honest, the caller ID I worked on had other
portions too. The Pic and the LM324 support only a subset of the
'system'.

Scott

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