Help no sound from me when called

[prwhite55]

i found this forum looking for an answer to my s3 calling function. anyone who calls me, cant hear me, but i can hear them. after googling it i see its happened to hundreds of ppl. and there is no clear answer. so i took it to the sprint store, they said the mic was bad. i doubt it but hey. so they said they would get me another phone for $50. now that i can handle ! i do not have insurance, so maybe that was samsungs own warranty. anyways, maybe this will help someone else.