sorry if this is a stupid question, i just cannot get my head around it – thanks!
EDIT: answered, thanks again!
In: 0
When you call your friend on the phone, your phone’s microphone is converting your voice to electrical signal and sending it to your friend, whose phone then converts the electrical signal back to sound to play on its speaker.
When you press the mute button, your phone stops sending the electrical signal to your friend. Your microphone will continue to convert the signal, it’s just not sent. However, your phone will send a signal to your friend’s phone telling them “hey, I’m still here” every now and again so the phone knows not to hang up the call.
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