Telephone identification data device for a telephone transmits identification data via a telephone in response to requesting data received via the telephone

摘要

An identification device (IdV) has a receiver (IdVE), a transmitter (IdVS), a controller (IdVSt) and a memory storage unit (IdSp). The receiver picks up a telephone's (T) signals emitted via a loudspeaker (TL). The transmitter transfers signals to the telephone's microphone (TM). The receiver picks up request data from the telephone. Independent claims are also included for the following: (a) a telephone with an identification device according to the present invention; (b) and for a communications environment with a telephone and a network; (c) and for a method for operating a telephone according to the present invention.