Arrangement and a method in a telephony system technical field of the invention

• US 20030008612A1
• Filed: 07/05/2001
• Published: 01/09/2003
• Est. Priority Date: 07/05/2001
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Andreason, Tomas
• Granted Patent: US 7,792,484 B2
• Time in Patent Office: Days
• US Class Current: 455/11.1
• CPC Class Codes: H04M 1/725 Cordless telephones user interfaces specially adapted therefor H04M1/724
• CPC Class Codes: H04M 2250/02 including a Bluetooth interface
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A mobile telephone is easy to carry around but has a small keypad and a small display. A normal deskphone has a big keypad and display and has a convenient handset, but is stationary. A stationary telephony terminal is described which is connected to a mobile telephony network via a mobile telephone. The mobile and the stationary terminal have each a bluetooth radio transceiver and are interconnected via a bluetooth link. The stationary terminal lacks identity in the mobile network. A subscriber, owning the mobile, can call on the stationary terminal and can move to another network having another stationary terminal, on which he can make a call. Another subscriber with a mobile can call on the terminal. To prevent misuse the subscribers take an authentication code for his respective mobile on the stationary terminal, and the authentication can be made valid for a predetermined period by taking a service code.

Claims

1. An arrangement in a telephony system TS1) including

at least one mobile radio telephone for being radio connected to a mobile radio telephony network in the telephony system via a radio link;

and

at least one stationary telephony terminal, characterized in that

the stationary telephony terminal and the mobile radio telephone have each a short range transceiver for intercommunication via a short range wireless communication link; and

the stationary telephony terminal is arranged to communicate over the mobile radio telephony network via the mobile radio telephone.

2. An arrangement in a telephony system according to claim 1, characterized in that the stationary telephony terminal has a device for taking a telephone number to a called subscriber.

3. An arrangement in a telephony system according to claim 1, characterized in that the short range transceivers are radio trasceivers.

4. An arrangement in a telephony system according to claim 3, characterized in that the short range radio transceivers are bluetooth transceivers.

5. An arrangement in a telephony system according to claim 1, characterized in that the short range transceivers are optical transceivers.

6. An arrangement in a telephony system according to claim 1, characterized in that the stationary terminal includes a device for generating a ring signal.

7. Method for communicating in a telephony system via a communication arrangement, the arrangement including:

at least one mobile radio telephone for being radio connected to a mobile radio telephony network in the telephony system via a radio link; and

at least one stationary telephony terminal,

characterized in that the method includes;

intercommunicating via a short range wireless communication link between the stationary telephony terminal and the mobile radio telephone; and

communicating by the stationary telephony terminal over the mobile radio telephony network via the mobile radio telephone.

8. Method for communicating in a telephony system according to claim 7, characterized by the following steps:

sending, from the stationary telephony terminal, discovery signals over the short range wireless communication link;

receiving in the mobile radio telephone said discovery signals;

sending response signals from the mobile radio telephone;

receiving in the stationary telephony terminal the response signals; and

sending a mobile identification signal from the mobile radio telephone.

9. Method for communicating in a telephony system according to claim 8, characterized in that the identification signal includes an individual identification signal for the mobile radio telephone.

10. Method for communicating in a telephony system according to claim 7, characterized by the following steps:

sending, from the mobile radio telephone, discovery signals over the short range wireless communication link;

receiving in the stationary telephony terminal said discovery signals;

sending response signals from the stationary telephony terminal;

receiving in the mobile radio telephone the response signals; and

sending a mobile identification signal from the mobile radio telephone.

11. Method for communicating in a telephony system according to claim 10, characterized in that the identification signal from the mobile radio telephone includes an individual identification signal for the mobile radio telephone.

12. Method for communicating in a telephony system according to claim 9, characterized by sending from the stationary telephony terminal an authentication code to the mobile radio telephone.

13. Method for communicating in a telephony system according to claim 12, characterized by taking a service code on the stationary telephony terminal, indicating when the sent authentication code is valid.

14. Method for communicating in a telephony system according to claim 12, characterized by checking the authentication code in the mobile radio telephone.

15. Method for communicating in a telephony system according to claim 12, characterized by checking the authentication code in the mobile radio telephony network.

16. Method for communicating in a telephony system according to claim 7, characterized by the method including the following steps:

receiving an incoming call on the mobile radio telephone via the radio link from the mobile radio telephony network;

transmitting a message regarding the call to the stationary telephony terminal via the short range wireless communication link; and

establishing a speech channel on the short range wireless communication link.

17. Method for communicating in a telephony system according to claim 16, characterized by generating a ring signal in the stationary telephony terminal in dependence of the message regarding the call.

18. Method in a telephony system according to claim 7, characterized by the method including the following steps:

setting up a connection on the short range wireless communication link;

taking a telephone number on the stationary telephony terminal to a called subscriber;

transmitting the telephone number to the mobile radio telephone via the short range wireless communication link;

setting up a connection on the radio link from the mobile radio telepone to the mobile radio telephony network in dependence on the transmitted telephone number.

19. A stationary telephony terminal, characterized in that it includes:

a short range transceiver for intercommunication with a mobile radio telephone via a short range wireless communication link; and

a controlling device connected to the short range transceiver, wherein the controlling device is arranged to support telephony from the stationary telephony terminal over a mobile radio telephony network via said mobile radio telephone.