Method for setting up a telecommunication link to persons in closed facilities, such as passenger transport means, as well as a telecommunication system and network

A telecommunication system for a substantially enclosed facility, including a private branch exchange provided inside said facility and able to be called from outside the facility and with several internal communication transmitting terminals provided inside the facility, operated by the private branch exchange and assigned to persons who are inside the facility to whom in each case a personal call number is assigned to use a private telecommunication network outside of the facility, wherein in said system the private branch exchange receives from a switching facility of the telecommunication network a call directed to the private telecommunication transmitting terminal of the person together with an identification number and, by means of this identification number, determines the internal communication transmitting terminal and forwards the call to this internal communication transmitting terminal, wherein the identification number corresponds to the personal call number of the person, and wherein an assigning facility is located outside said enclosed facility, which, at least during the person's stay in the enclosed facility, stores an assignment of said person's personal call number to the identification number identifying the internal communication transmitting terminal that is assigned to the person during said person's stay in the enclosed facility and which, by means of the stored assignment, controls the call rerouting to this internal communication transmitting terminal.

A method for establishing a telecommunication connection to a person inside a self-contained object, comprising:

• (a) associating a personal call number of the person, under which the person is called in a communication network outside the self-contained object, with an identification number of an internal telecommunication terminal, which is located inside the self-contained object;
• (b) storing the association of the personal call number with the identification number of the internal telecommunication terminal, wherein the association is stored outside the self-contained object;
• (c) dialing the personal call number of the person to initiate a call to the person;
• (d) matching the person's personal call number with the identification number of the internal telecommunication terminal, if the person in the self-contained object is located outside a coverage area of the communication network;
• (e) forwarding the call and the identification number of the internal telecommunication terminal to a private branch exchange in the self-contained object;
• (f) in the private branch exchange, identifying the internal telecommunication terminal inside the self-contained object via the identification number of the internal telecommunication terminal;
• and
• (g) forwarding the call from the private branch exchange to the identified internal telecommunication terminal.

A telecommunication system, comprising:

• at least one internal telecommunication terminal inside a self-contained object, wherein the self-contained object is located outside a coverage of a communication network to which a person subscribes;
• an association arrangement located outside the self-contained object to store an association of a personal call number of the person, under which the person is called in the communication network, with an identification number of the internal telecommunication terminal;
• and
• a private branch exchange inside the self-contained object, to which the identification number of the internal telecommunication terminal is forwarded, if the person is called in the communication network and after the personal call number of the person is matched with the associated identification number of the internal telecommunication terminal.