@AdnanAhmed97 said in Phone dialer module:

implement a MM project

I hope this will hwlp you
The easiest way is to use Mobile Phone. All mobile phones use DTMF tone for dialing numbers. Use 3.5mm headphone jack to take generated sound as input to DTMF decoder. If you are using smartphone and you do not want to use dial pad, there are number of apps in the market which can produce DTMF tone.