Method for call number allocation and device for carrying out the method

The invention relates to a method for telephone number assignment (x1In the case of a call of a terminal (8) not identified with a separate caller number in a communication network, a destination number (117) is selected from a predeterminable group of destination numbers (117, 118), wherein during the communication of the terminal (8) with its input a trigger signal in the terminal (8) dialed number (14; 117) the terminal (8) in the communication network a caller number (x1) from a predefinable group (12) reserved caller numbers (x1, x2), and wherein this caller number (x1) after this communication of the terminal (8) with the subscriber with the called destination number (117) is re-enabled for a re-call of an unidentified terminal at a destination number (117,118) from the group (13) of destination numbers Terminal, a communication center (6) or an emergency call center (7). It is an efficient number management of devices without their own mobile number allows.