Motorola RAZR V3c

Hi everyone. I have had my Razr for 2 days, and am very disappointed with how poorly the person Im talking to sounds. I can barely hear them even when ear volume is up to 7. not very loud in general, and some sound muffled. this really causes a problem when Im trying to hear while driving on the interstate.

did anyone else notice this with their phone, or could I have a bad phone?

thanks!