audio - How can i replace a electret mic input with headphone output as input - Electrical Engineering Stack Exchange

I'm using a SIM800L GSM module for my project. In this module there is a electret mic input pin but I want to give audio to this module from headphone output from a mobile (There is no line in pin

audio - Using a microphone with an Arduino - Electrical Engineering Stack Exchange

operational amplifier - Convert an audio signal to 0-5V using single supply op amp - Electrical Engineering Stack Exchange

amplifier - Electret microphone to headphone does not work - Electrical Engineering Stack Exchange

audio - Getting opposite expected voltage with electret microphone - Electrical Engineering Stack Exchange

switches - Add line in to electret microphone and mute the microphone when plug is connected - Electrical Engineering Stack Exchange

Pull-up resistor over a microphone - Electrical Engineering Stack Exchange

impedance - Electronic aspects of iPhone 3.5mm audio output - Electrical Engineering Stack Exchange

audio - ADC Question for Sampling With Electret - Electrical Engineering Stack Exchange

arduino - Electret Microphone preamplification - will it work for dynamic type microphone? - Electrical Engineering Stack Exchange

audio - Can I use a three-wire electret microphone on a two-wire amplifier? - Electrical Engineering Stack Exchange

operational amplifier - Can I replace electret microphone with audio connector and expect similar results (sound levels)? - Electrical Engineering Stack Exchange

operational amplifier - Can I replace electret microphone with audio connector and expect similar results (sound levels)? - Electrical Engineering Stack Exchange

operational amplifier - Advice to improve my microphone circuit - Electrical Engineering Stack Exchange

Headphone OUT to microphone IN for mobile phones - Electrical Engineering Stack Exchange

audio - Low noise electret mic circuit - Electrical Engineering Stack Exchange