Sanyo

Several weeks ago I purchased the MM-7400. After getting home with it, I have found that the reception is very poor. I used to get a full 4 bars of service with my old Sanyo 5600 when sitting at my office desk, now I only get 1 or 2. I have been sitting at my house and had a called dropped 3 times. Other times People leave messages on my voicemail and my phone never rang.

Has anyone else had these issues?

I had Sprint exchange the MM-7400 for another one, and I still have the same issues.