Download the hardware datasheet UM91215 from www.alldatasheet.com
you will find entire telephone circuit diagramover there.
see how they implemented in hardware. you can convert it functionally to PIC
Download the hardware datasheet UM91215 from www.alldatasheet.com
you will find entire telephone circuit diagramover there.
see how they implemented in hardware. you can convert it functionally to PIC
Regards,
Sarma
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