Support S3 Microphone works in S-Voice/Dictation but not calls

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http://androidforums.com – Hi there, Phandroid and S3 newbie here. I have found that my microphone is not working during voice calls however it works fine in S Voice, voice recording and video recording. Looking through the forums and web it appears that many people have trouble with their microphones but I've yet to find anyone who has a microphone that works in all applications except calls. Has anyone had this problem and how did they fix it? (General)