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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
mohan5k627
Comments
Manfred R. Bihy at 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
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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.
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Solution 2

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[^]
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Comments
mohan5k at 20-Sep-11 2:11am
   
Hi dave,
 
Actually I have to develop a small application where my client can be able to call/receive the customer call. Similar to the Call center application, whenever a customer calls a client automatically I have to do a db search(if he is a existing customer) and the number that I got from the modem should be displayed automatically in the computer. I thought I can do this job with voice modem.
 
Please note that my client will be having a simple land line connection.
 
Plz suggest me any other approach to accomplish this task.
 
Regards
Mohan
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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
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Comments
sammirgal at 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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