Ok so I am thinking of coming back to T-Mobile from Cingular. However, my question is does anyone know how the call quality is on the samsung e335. The quality on the e317 is horrible, the volume is WAY TOO LOW.

Also, it says tmobile has roaming agreements with companies such as Cingular, does that mean if I switch to Cingulars network for example that I can use their network and not pay roaming, or do I have to pay roaming rate to use them?