Curve 8300 Curve 8300 is a mobile phone manufactured by Research In Motion Limited. Latest user agents:BlackBerry8300/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/107 UP.Link/6.2.3.15.0 [ip:134.209.137.157]BlackBerry8300/4.2.2Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/107UP.Link/6.2.3.15.0BlackBerry8300/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/107 UP.Link/6.2.3.15.0