A system and method for displaying characters on a BLUETOOTH device using a mobile electronic device obtains a telephone number of an incoming call, and converts associated one or more characters into a bitmap picture in response to a determination that the telephone number is associated with one or more characters in a character encoding packet. The system and method further reads a resolution of the bitmap picture and a resolution of a display of the BLUETOOTH device, and adjusts the resolution of the bitmap picture to match the resolution of the display of the BLUETOOTH device. Furthermore, the system and method sends the bitmap picture or the telephone number to the BLUETOOTH device, and displays the bitmap picture on the display of the BLUETOOTH device.