Reverse phone scan
Bluetooth 1.2, includes the addition of an anonymity mode, which masks the hardware address of the device to protect from identity snooping and tracking, and adaptive frequency hopping, which cuts interference by avoiding crowded frequencies. Bluetooth 2.0 has some enhancements reverse phone scan; among them are narrowband channels, which will enable messages to be broadcast to a high number of devices without the pairing process, andhigher connection speeds of up to 12Mbps. A Bluetooth cellular phone communicates on a frequency of 2.45 gigahertz, which has been set aside by international agreement for the use of industrial, scientific and medical devices (ISM).