Hi JR -
While signal strength can vary from phone to phone with the same carrier, typically the carrier is the biggest determinant of signal strength. It is possible that your original phone is not working correctly, and/or the cellular radio on the 8900 is stronger.
That being said, do you have access to a wi-fi network at the hospital you work with? If so, you can utilize the 8900's UMA which would allow you to make calls over the wi-fi network ...
I think I may already know this answer but can a different phone with the same provider give you a different signal strength.
I have recently started a new job in which I will be working at a local hospital. It looks as if I may need to get a blackberry. I currently own a tmobile wing and found that in most areas in the hospital gave 0 strength. Do you think if I upgraded to a BB 8900 I would see an improvement in signal strength?
Thanks for responses