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i need urgent help in >> telephone signaling module

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k_general

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signaling module(dial .ringing.,back ringing)

hi all

i got this task today and i have to solve it within two days i really need any help

the task :


Design and implement a telephone signaling module that generates standard signaling tones ( dial, ringing, ringing back, busy tone).that is to say to bring us a complete circuit that generates those tones through a speaker. Use any hardware which will help from your point of view ( Ics , Microcontroller or anything you need).
 

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