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Subject: auto dialing

Date: 09/23/02 at 12:44 AM
Posted by: Shyamala
E-mail: shyamala@fancol.com
Message Posted:

Hi! their., i am doing a project on autodialing some stored numbers in 68hc11. I am using MT8880c., the dtmf transiever to do the job. But.,i doubt if this ic is compatable with 68hc11 and also this mt8880c is much more versatile with features that i dont want. Have any body had some experience with similar project and is their any other better choice of ic( which is freely available in canada)?

Also., how would i produce the equivalent dtmf frequencies in software so that i can directly interface it with telephone line?? Is this possible??
Please help with your suggestions
thanks a lot.,

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