i have an lg att qwerty phone just bought it from someone and the sound doesnt work when you make a call, it only works when it is on speaker. i was wondering if there is a button or something i could push ebcause i thought it the sound didnt work then the speaker wouldnt work either.the ringing works as well and music all that but just not calls...is there anything i could do or is there something wrong with the phone? any help is greatly appreciated. thanks