Sobakava
Full Member level 6
I need to make a device similar to usual phone,
it should dial recorded number when "call" button pressed,
after remote side picks-up the handset, it should provide
handsfree talking... that's all...
I plan to use a very simple microcontroller for dialing number
using dtmf.
but I need recommendations about line interfacing of microphone,
speaker phone and dtmf signal produced by the microcontroller.
regards
it should dial recorded number when "call" button pressed,
after remote side picks-up the handset, it should provide
handsfree talking... that's all...
I plan to use a very simple microcontroller for dialing number
using dtmf.
but I need recommendations about line interfacing of microphone,
speaker phone and dtmf signal produced by the microcontroller.
regards