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4 Threads found on Phone Line Controller
phone line has a tip and a ring it is very important
Hi! GSM (cell phone) signal is very strong and can cause interference in your circuit if it is placed near the circuit. One solution is to use a couple of bypass capacitors(100nF). The capacitors should be on the supply line to the controller and should be as close as possible to the controller. If it doesnot solve (...)
I have little idea this can be done using DTMF deocder ic and controller. But i am stuck how to connect phone line with that ic do i need some precautions or what. I need little help to ignite my self in this topic reset i can burn my self.
Hi I worked with this chip - terrible chip need's long delay and bed voice output hardly understandable with phone line. All the best Bobi