I used to get invited to calls all the time and at first my sound was broken...and then I got that fixed but then realized "oh shit i need a mic cuz i dont got my laptop with one built in anymore" so i got one and now when im online i never get invited anymore. i wasted my money!
Oh well, i hate speaking on the phone anyways and thats basically all it is. and i would only add random remarks every 5 minutes.