anand_dixit
New Member
hi all,
i want to build a circuit that detect caller id compliant to the Indian format (it is DTMF i assume) can anyone help me with the details? (the components used etc.) i designed a circuit using the MT8870 ic but it didnt work when i tested it (this chip converts the incoming dtmf signal to a hex signal) i kept getting all four uotput pins high. my email is provided below for you:
anand_dixit2011@yahoo.com
i want to build a circuit that detect caller id compliant to the Indian format (it is DTMF i assume) can anyone help me with the details? (the components used etc.) i designed a circuit using the MT8870 ic but it didnt work when i tested it (this chip converts the incoming dtmf signal to a hex signal) i kept getting all four uotput pins high. my email is provided below for you:
anand_dixit2011@yahoo.com