i hate to point this out....well actually i don't....the service is push to talk or readylink or walkie talkie etc.... & the company is nextel.
or sprint, or cingular now and whatever other pcs company offers the same service. & most of these companies use the same handset providers so actual phone quality really doesn't vary that much, just the networks.

 

i love my nokia... such an amazing phone. small, easy, great reception, and they are tanks (well my old one was, havent done anything that bad to my new one)