System and a method for transferring a call and a mobile station

• US 6,370,394 B1
• Filed: 04/23/1998
• Issued: 04/09/2002
• Est. Priority Date: 04/30/1997
• Status: Expired due to Term

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Mobile Phones UK Limited (Nokia Corporation)
• Inventors: Anttila, Ismo Aleksanteri
• Primary Examiner(s): Vo, Nguyen T.
• Assistant Examiner(s): NGUYEN, DUC M
• Application Number:
  US09/065,324
• Time in Patent Office: 1,447 Days
• Field of Search: 455/552, 455/553, 455/556, 455/557, 455/558, 455/465, 455/462, 455/422, 379/33, 379/301, 379/357, 379/93.05, 379/93.09
• US Class Current: 455/417
• CPC Class Codes: H04M 1/006 Call diverting means
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16

Abstract

The present invention is related to a call transfer system and a mobile station (10) connected to it. In the system according to the invention the mobile station (10) is connected to a terminal device (40) for example using a cable (51) or an infrared connection, and the radio sections of the mobile station (10) are switched off. The mobile station (10) is connected to a mobile communication centre (100) or a telephone exchange (110) over the terminal device (40), a local area network (70, 75) and an interconnecting network (80) and a network server (90). Calls are routed based upon identification information), such as for example a IP (Internet Protocol)-address, characteristic of the terminal device (40) stored in the memory of the mobile station (10). If the mobile station (10) is connected to a terminal device (41, 42, 43) other than its own terminal device (40), the own terminal device (40) routes any incoming calls further over the second terminal device (41, 42, 43) to the mobile station (10).

Claims

1. A system for transferring information comprising:

at least one mobile station; and

at least one subscriber device;

wherein the mobile station is adapted to be operatively connected to the subscriber device over a mobile communications network for transferring information between the mobile station and the subscriber device; and

at least one local system comprising;

at least one computer system, the mobile station adapted to be operatively coupled to the computer system;

a local area network operatively coupling each computer device in the local system to each other; and

an interconnecting network operatively coupling each local system to each other;

a network server operatively coupled between the interconnecting network and the telecommunication network, the network server adapted to transfer data from the mobile station to the subscriber device over the telecommunications network via the interconnecting network based upon a telephone number of the subscriber device, and to transfer information from the subscriber device over the telecommunications network to the local system via the interconnecting network based upon identification information characteristic of a computer of the computer system.

2. The system of claim 1 wherein the network server further comprises a reference table adapted to include the telephone number corresponding to each mobile station and the internet protocol address corresponding to each mobile station and to convert the phone number into the corresponding internet protocol address.

3. The system of claim 1 wherein when the mobile station is operatively connected to the computer device, at least one mobile station function of the mobile station is disabled.

4. The system of claim 1 wherein the network server is further adapted to convert speech being transferred between the local system and the telecommunications network from regular pulse excitation-long term prediction to pulse coded modulation and from pulse coded modulation to regular pulse excitation-long term prediction.

5. A method for transferring information between a mobile station and a subscriber device comprising the steps of:

detecting that the mobile station is operatively connected to a computer device in a local system;

determining if the mobile station operatively connected to the computer device is an authorized mobile station by comparing the identification information characteristic of a computer of the computer system stored in the mobile station with identification information stored in the computer device;

transmitting a call transfer routing message if the mobile station connected to the computer device is a visiting mobile station;

routing a call to the mobile station operatively connected to the computer device from the subscriber device in a telecommunications network and routing the call from the telecommunication network through a packet switched data network to the computer device associated with the mobile station as identified by the identification information.

6. The method of claim 5 further comprising the step of detecting that the mobile station is not connected to the computer device and activating a mobile telephone service of the mobile station, wherein when a telephone call is routed to the computer device the computer device is adapted to reroute the call back to the mobile station via a mobile communications network.