Voice modem Integration

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Hi All,

Requirement:

I have to buy a voice modem that should support Indian format (DTMF) and I should be able to dial a number from a .net Form (that was entered in a textbox).

On receiving a call the application should automatically recognize (caller Id) the number where the call came from.

Can any one plz suggest me the modem and approach?

Thanks,
Mohan

Posted 18-Sep-11 21:44pm

mohan5k

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Manfred Rudolf Bihy 18-Feb-13 8:54am

[Moved from non-solution: Original poster was agarwalrishi]
Hi Mohan,

We have a similar requirement for our client. Just wanted to check if you found any solution to your problem.

Please let me know at your earliest.

Thanks,
Rishi

3 solutions

Solution 1

AFAIK, DTMF is standard, not just in India, but pretty much everywhere, and has been for thirty or so years. Any modem you purchase that has been built in the last ten years or so should be fine.

As far as Caller ID goes, Google[^] can help.

Posted 18-Sep-11 21:51pm

OriginalGriff

Solution 3

Hi All,

Even I found some web sites..I found that with ADSL Modem we can accomplish the task..Can any one suggest me what Hardware Should I buy.

http://www.tech-faq.com/adsl-modem.html[^]

Regards,
Mohan

Posted 19-Sep-11 23:04pm

mohan5k

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sammirgal 3-Jul-12 11:48am

Mohan,
Did you find any modem? I am also working on similar application and looking for voice modem

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DaveAuld · Accepted Answer · 2011-09-18T21:59:00

You will need any basic modem that has DTMF dialing (which is basically every modem in existence nowadays), but from a legal standpoint it should be approved for use on the Indian public telephone networks.

The modems usually work fine by simply opening up a serial port to the device and issuing AT commands to them. A very simple mechanism. Likewise, the modem with send Serial messages to a listening app on a serial port when it receives a call.

you maybe also could do with researching TAPI (Telephony API).

I have know idea whose modems are the best or suitable, its been that long since i have used one, but used to use USRobotics (Now owned by 3COM) without any problem.

You could maybe have a read of this and search for similiar things; Managing Dialup connection[^]