Radio communication device, parent communication device, parent-child communication device and radio communication system

• US 6,763,231 B2
• Filed: 07/31/2002
• Issued: 07/13/2004
• Est. Priority Date: 12/25/2000
• Status: Expired due to Term

• Current Assignee: S Aqua Semiconductor LLC (Intellectual Ventures LLC)
• Original Assignee: YOZAN, Inc.
• Inventors: Kiyomatsu, Hisanori, Takatori, Sunao
• Primary Examiner(s): Maung, Nay
• Assistant Examiner(s): Gantt, Alan T.
• Application Number:
  US10/182,666
• Publication Number:
  US 20030008647A1
• Time in Patent Office: 713 Days
• Field of Search: 455/420, 455/426.1, 455/458, 455/459, 455/462, 455/465, 340/729, 370/336
• US Class Current: 455/420
• CPC Class Codes: H04M 1/725 Cordless telephones user interfaces specially adapted therefor H04M1/724
• CPC Class Codes: H04W 84/16 WPBX [Wireless Private Branch Exchange]

Abstract

The present invention relates to a slave communication device which received control delegation from a master communication device and performs communication with an originating telephone apparatus through a host station based on a call originated from that originating telephone apparatus, and has a master communication device 1 having a unique master ID set therefor for using a wireless telephone line provided by a host station 3 and one or more slave communication devices 2 receiving control delegation from the master communication device 1 to perform communication using the wireless telephone line for the master communication device 1. The slave communication device 2 comprises storage means for storing the master ID and a slave ID recognizable by the master communication device 1, wireless communication means for performing communication using the wireless telephone line for the master communication device 1 through the host station 3, pager signal reception means for receiving a pager signal of a radio paging system, and control means for controlling the wireless communication means based on a predetermined pager signal received by the pager signal reception means.

Claims

1. A wireless communication device receiving control delegation from a master communication device having a unique master ID set therefor for using a wireless telephone line provided by a host station so as to perform communication by using the wireless telephone line for said master communication device, said wireless communication device comprising:

storage means for storing said master ID and a slave ID that is recognizable by said master communication device;

wireless communication means for performing communication by using the wireless telephone line for said master communication device through said host station;

pager signal reception means for receiving a pager signal of a radio paging system; and

control means for controlling said wireless communication means based on a predetermined pager signal received by said pager signal reception means;

wherein said control means normally keeps the power of said wireless communication means turned off; and

wherein, when said pager signal reception means receives a pager signal, said control means determines whether or not the pager signal includes an originating instruction specifying that originating should be performed to an originating telephone number, and, when said control means determines that the originating instruction is not included in the pager signal, said control means performs control to maintain that the power of said wireless communication means remains off.

2. The wireless communication device according to claim 1, wherein said control means performs control to turn on the power of said wireless communication means when said control means determines that the originating instruction specifying that originating should be performed to the originating telephone number is included in the pager signal.

3. The wireless communication device according to claim 2, wherein said control means controls said wireless communication means to perform originating to an originating telephone apparatus of the originating telephone number using said master ID after the power of said wireless communication means is turned on.

4. The wireless communication device according to claim 1, wherein when said pager signal reception means receives said pager signal including the originating telephone number of the originating telephone apparatus, said control means performs control to notify a user that a telephone call should be made to the originating telephone apparatus of said originating telephone number.

5. The wireless communication device according to claim 1, further comprising transmission/reception means for receiving the slave ID created by said master communication device in said control delegation and performing transmission and reception of various signals to and from said master communication device, and

wherein, when said transmission/reception means receives said slave ID, said control means controls said storage means to store said slave ID in said storage means.

6. A wireless communication device receiving control delegation from a master communication device having a unique master ID set therefor for using a wireless telephone line provided by a host station so as to perform communication by using the wireless telephone line for said master communication device, said wireless communications device comprising:

storage means for storing said master ID and a slave ID that is recognizable by said master communication device;

wireless communication means for performing communication by using the wireless telephone line for said master communication device through said host station;

pager signal reception means for receiving a pager signal of a radio paging system;

control means for controlling said wireless communication means based on a predetermined pager signal received by said pager signal reception means; and

transmission/reception means for receiving the slave ID created by said master communication device in said control delegation and performing transmission and reception of various signals to and from said master communication device;

wherein, when said transmission/reception means receives said slave ID, said control means controls said storage means to store said slave ID in said storage means;

wherein said storage means has a pager ID stored therein for the pager signal received by said pager signal reception means; and

wherein said control means controls said storage means and said transmission/reception means to read and transmit said pager ID to said master communication device in said control delegation, respectively.

7. A master communication device having a unique master ID set therefor for using a wireless telephone line provided by a host station, using at least one slave communication device, and providing each of the at least one slave communication device with a slave ID created on the basis of said master ID so as to perform control delegation to each of the at least one slave communication device, wherein:

said master communication device comprises

first wireless communication means for performing wireless communication through said host station by transmitting said master ID to said host station, and

first control means for controlling said first wireless communication means;

each of said at least one slave communication device comprises

storage means for storing said master ID and a slave ID that is recognizable by said master communication device,

second wireless communication means for performing communication by using the wireless telephone line for said master communication device through said host station,

pager signal reception means for receiving a pager signal of a radio paging system, and

second control means for controlling said second wireless communication means based on a predetermined pager signal received by said pager signal reception means; and

when said first wireless communication means receives, during communication with an originating telephone apparatus, a signal indicating an originating telephone number of the originating telephone apparatus and a signal specifying any of the at least one slave communication device to which control has been delegated that has originated from said originating telephone apparatus, said first control means disconnects the communication with said originating telephone apparatus and controls said first wireless communication means such that said pager signal reception means of said any of said at least one slave communication device receives a pager signal including said originating telephone number and an originating instruction specifying that originating should be performed to said originating telephone number.

8. The master communication device according to claim 7, wherein said master communication device further comprises storage means for storing a pager ID of each of said at least one slave communication device to which control has been delegated, and

wherein said first control means reads said pager ID from said storage means of said master communication device and controls said first wireless communication means to perform originating to the pager ID of said any of said at least one slave communication device such that said pager signal reception means of said any of said at least one slave communication device receives the pager signal including the originating telephone number and the originating instruction specifying that originating should be performed to said originating telephone number.

9. The master communication device according to claim 8, wherein said master communication device further comprises transmission/reception means for receiving the pager ID from each of the at least one slave communication device in said control delegation and performing transmission and reception of various signals to and from each of the at least one slave communication device, and

wherein said first control means stores each of the pager IDs received from each of the at least one slave communication device in said storage means of said master communication device, creates slave IDs corresponding in number to the number of slave communication devices to which control is to be delegated, and controls said transmission/reception means to transmit the slave IDs to each of the at least one slave communication device to which control is to be delegated, respectively.

10. A master/slave communication device comprising a master communication device having a unique master ID set therefor for using a wireless communication line provided by a host station and one or more slave communication devices receiving control delegation from said master communication device so as to perform communication by using the wireless communication line for said master communication device, wherein:

said master communication device comprises wireless communication means for performing wireless communication through said host station by transmitting said master ID to said host station, and control means for controlling said wireless communication means;

each of said slave communication devices comprises storage means for storing said master ID and a slave ID that is recognizable by said master communication device, wireless communication means for performing communication by using the wireless telephone line for said master communication device through said host station, pager signal reception means for receiving a pager signal of a radio paging system, and control means for controlling said wireless communication means based on a predetermined pager signal received by said pager signal reception means;

said control means of said slave communication device normally keeps the power of said wireless communication means turned off; and

when said pager signal reception means receives a pager signal, said control means of said slave communication device determines whether or not the pager signal includes an originating instruction specifying that originating should be performed to an originating telephone number, and when said control means of said slave communication device determines that the originating instruction is not included in the pager signal, said control means of said slave communication device performs control to maintain that the power of said wireless communication means of said slave communication device remains off.

13. The master/slave communication device according to claim 10, wherein, when said pager signal reception means receives the pager signal including the originating telephone number of said originating telephone apparatus, said control means of said slave communication device performs control to notify a user that a telephone call should be made to the originating telephone apparatus of said originating telephone number.

14. The master/slave communication device according to claim 10, wherein each of the slave communication devices comprises transmission/reception means for receiving the slave ID created by said master communication device in said control delegation and performing transmission and reception of various signals to and from said master communication device, and when said transmission/reception means receives said slave ID, said control means of each of the slave communication devices controls said storage means to store said slave ID in said storage means, respectively.

18. The master/slave communication device according to claim 10, wherein, when said wireless communication means of said master communication device receives, during communication with an originating telephone apparatus, a signal indicating an originating telephone number of the originating telephone apparatus and a signal specifying any of the slave communication devices to which control has been delegated that has originated from said originating telephone apparatus, said control means of said master communication device disconnects the communication with said originating telephone apparatus and controls said wireless communication means of said master communication device such that said pager signal reception means of said any of the slave communication devices receives a pager signal including an originating instruction specifying that originating should be performed to said originating telephone number.

19. The master/slave communication device according to claim 10, wherein said pager signal reception means of said any of the slave communication devices receives a pager signal including the originating telephone number of the originating telephone apparatus and an originating instruction specifying that originating should be performed to said originating telephone number which has originated from the originating telephone apparatus.

11. The master/slave communication device according to claim 11, wherein said control means of said slave communication device performs control to turn on the power of said wireless communication means of said slave communication device when said control means of said slave communication device determines that the originating instruction specifying that originating should be performed to the originating telephone number is included in the pager signal.

12. The master/slave communication device according to claim 11, wherein said control means of said slave communication device controls said wireless communication means of said slave communication device to perform originating to an originating telephone apparatus of the originating telephone number using said master ID after the power of said wireless communication means of said slave communication device is turned on.

15. A master/slave communication device comprising a master communication device having a unique master ID set therefor for using a wireless communication line provided by a host station and one or more slave communication devices receiving control delegation from said master communication device so as to perform communication by using the wireless communication line for said master communication device, wherein:

said master communication device comprises wireless communication means for performing wireless communication through said host station by transmitting said master ID to said host station, and control means for controlling said wireless communication means;

each of said slave communication devices comprises storage means for storing said master ID and a slave ID that is recognizable by said master communication device, wireless communication means for performing communication by using the wireless telephone line for said master communication device through said host station, pager signal reception means for receiving a pager signal of a radio paging system, control means for controlling said wireless communication means based on a predetermined pager signal received by said pager signal reception means, and transmission/reception means for receiving the slave ID created by said master communication device in said control delegation and performing transmission and reception of various signals to and from said master communication device, wherein when said transmission/reception means receives said slave ID, said control means controls said storage means to store said slave ID in said storage means; and

said storage means of each of the slave communication devices has a pager ID stored therein for the pager signal received by said pager signal reception means, respectively, and said control means of each of said slave communication devices controls said storage means and said transmission/reception means to read and transmit said pager ID to said master communication device in said control delegation, respectively.

16. A master/slave communication device comprising a master communication device having a unique master ID set therefor for using a wireless communication line provided by a host station and one or more slave communication devices receiving control delegation from said master communication device so as to perform communication by using the wireless communication line for said master communication device, wherein:

said master communication device comprises wireless communication means for performing wireless communication through said host station by transmitting said master ID to said host station, and control means for controlling said wireless communication means;

each of said slave communication devices comprises storage means for storing said master ID and a slave ID that is recognizable by said master communication device, wireless communication means for performing communication by using the wireless telephone line for said master communication device through said host station, pager signal reception means for receiving a pager signal of a radio paging system, and control means for controlling said wireless communication means based on a predetermined pager signal received by said pager signal reception means; and

said master communication device further comprises storage means for storing a pager ID of each of the slave communication devices to which control has been delegated, and said control means of said master communication device reads said pager ID from said storage means of said master communication device and controls said wireless communication means of said master communication device to perform originating to the respective pager ID of at least one of said slave communication devices to which control has been delegated such that said pager signal reception means of said at least one of said slave communication devices receives the pager signal including the originating telephone number and the originating instruction specifying that originating should be performed to said originating telephone number.

17. The master/slave communication device according to claim 16, wherein said master communication device further comprises transmission/reception means for receiving the pager ID from each of the slave communication devices in said control delegation and performing transmission and reception of various signals to and from each of the slave communication devices, and said control means of said master communication device stores each pager ID received from each of the slave communication devices in said storage means of said master communication device, creates slave IDs corresponding in number to the number of slave communication devices to which control is to be delegated, and controls said transmission/reception means to transmit the slave IDs to the slave communication devices to which control is to be delegated, respectively.

20. A wireless communication system comprising:

a master communication device having a unique master ID set therefor for using a wireless telephone line;

one or more slave communication devices receiving control delegation from said master communication device so as to perform communication by using the wireless telephone line for said master communication device; and

a host station for performing control of communication using said wireless telephone line and control of the transmission of a pager signal of a radio paging system;

wherein said master communication device comprises wireless communication means for performing wireless communication through said host station by transmitting said master ID to said host station, and control means for controlling said wireless communication means, and

each of said slave communication devices comprises storage means for storing said master ID and a slave ID recognizable by said master communication device, wireless communication means for performing communication by using the wireless telephone line for said master communication device through said host station, pager signal reception means for receiving a pager signal of the radio paging system, and control means for controlling said wireless communication means based on a predetermined pager signal received by said pager signal reception means.

21. The wireless communication system according to claim 20, wherein said host station has a plurality of radio signal transmission/reception means for performing transmission/reception of a radio signal by using said wireless telephone line and receiving a radio signal which originated from said wireless communication means of said master communication device or said wireless communication means of each of said slave communication devices, respectively, so as to perform location registration.

22. A wireless communication device operable to receive control delegation from a master communication device having a unique master ID set therefor for using a wireless telephone line provided by a host station so as to perform communication by using the wireless telephone line for said master communication device, said wireless communication device comprising:

a storage section operable to store the master ID and a slave ID that is recognizable by said master communication device;

a transmission/reception section operable to perform communication by using the wireless telephone line for said master communication device through said host station;

a pager signal reception section operable to receive a pager signal of a radio paging system; and

a control section operable to control said transmission/reception section based on a predetermined pager signal received by said pager signal reception section;

wherein said control section is operable to normally keep the power of said transmission/reception section turned off; and

wherein, when said pager signal reception section receives a pager signal, said control section is operable to determine whether or not the pager signal includes an originating instruction specifying that originating should be performed to an originating telephone number, and, when said control section determines that the originating instruction is not included in the pager signal, said control section is operable to maintain that the power of said transmission/reception section remains off.

23. The wireless communication device according to claim 22, wherein said control section is operable to perform control to turn on the power of said transmission/reception section when said control section determines that the originating instruction specifying that originating should be performed to the originating telephone number is included in the pager signal.

24. The wireless communication device according to claim 23, wherein said control section is operable to control said transmission/reception section to perform originating to an originating telephone apparatus of the originating telephone number using said master ID after the power of said transmission/reception section is turned on.

25. The wireless communication device according to claim 22, wherein, when said pager signal reception section receives said pager signal including the originating telephone number of the originating telephone apparatus, said control section is operable to perform control to notify a user that a telephone call should be made to the originating telephone apparatus of said originating telephone number.

26. The wireless communication device according to claim 22, further comprising an interrogator operable to receive the slave ID created by said master communication device in said control delegation and to perform transmission and reception of various signals to and from said master communication device, and

wherein, when said interrogator receives said slave ID, said control section is operable to control said storage section to store said slave ID in said storage section.

27. A wireless communication device receiving control delegation from a master communication device having a unique master ID set therefor for using a wireless telephone line provided by a host station so as to perform communication by using the wireless telephone line for said master communication device, said wireless communications device comprising:

a storage section operable to store said master ID and a slave ID that is recognizable by said master communication device;

a transmission/reception section operable to perform communication by using the wireless telephone line for said master communication device through said host station;

a pager signal reception section operable to receive a pager signal of a radio paging system;

a control section operable to control said transmission/reception section based on a predetermined pager signal received by said pager signal reception section; and

an interrogator operable to receive the slave ID created by said master communication device in said control delegation and to perform transmission and reception of various signals to and from said master communication device;

wherein, when said interrogator receives said slave ID, said control section is operable to control said storage section to store said slave ID in said storage section;

wherein said storage section has a pager ID stored therein for the pager signal received by said pager signal reception section; and

wherein said control section is operable to control said storage section and said interrogator to read and transmit said pager ID to said master communication device in said control delegation, respectively.

28. A master communication device having a unique master ID set therefor for using a wireless telephone line provided by a host station, using at least one slave communication device, and providing each of the at least one slave communication device with a slave ID created on the basis of said master ID so as to perform control delegation to each of the at least one slave communication device, wherein:

said master communication device comprises

a first transmission/reception section operable to perform wireless communication through said host station by transmitting said master ID to said host station, and

a first control section operable to control said first transmission/reception section;

each of said at least one slave communication device comprises

a storage section operable to store said master ID and a slave ID that is recognizable by said master communication device,

a second transmission/reception section operable to perform communication by using the wireless telephone line for said master communication device through said host station,

a pager signal reception section operable to receive a pager signal of a radio paging system, and

a second control section operable to control said second transmission/reception section based on a predetermined pager signal received by said pager signal reception section; and

when said first transmission/reception section receives, during communication with an originating telephone apparatus, a signal indicating an originating telephone number of the originating telephone apparatus and a signal specifying any of the at least one slave communication device to which control has been delegated that has originated from said originating telephone apparatus, said first control section is operable to disconnect the communication with said originating telephone apparatus and to control said first transmission/reception section such that said pager signal reception section of said any of said at least one slave communication device receives a pager signal including said originating telephone number and an originating instruction specifying that originating should be performed to said originating telephone number.

29. The master communication device according to claim 28, wherein said master communication device further comprises a storage section operable to store a pager ID of each of said at least one slave communication device to which control has been delegated, and

wherein said first control section is operable to read said pager ID from said storage section of said master communication device and to control said first transmission/reception section to perform originating to the pager ID of said any of said at least one slave communication device such that said pager signal reception section of said any of said at least one slave communication device receives the pager signal including the originating telephone number and the originating instruction specifying that originating should be performed to said originating telephone number.

30. The master communication device according to claim 29, wherein said master communication device further comprises a responder operable to receive the pager ID from each of the at least one slave communication device in said control delegation and to perform transmission and reception of various signals to and from each, of the at least one slave communication device, and

wherein said first control section is operable to store each of the pager IDs received from each of the at least one slave communication device in said storage section of said master communication device, to create slave IDs corresponding in number to the number of slave communication devices to which control is to be delegated, and to control said responder to transmit the slave IDs to each of the at least one slave communication device to which control is to be delegated, respectively.

31. A master/slave communication device comprising a master communication device having a unique master ID set therefor for using a wireless communication line provided by a host station and one or more slave communication devices receiving control delegation from said master communication device so as to perform communication by using the wireless communication line for said master communication device, wherein:

said master communication device comprises a transmission/reception section operable to perform wireless communication through said host station by transmitting said master ID to said host station, and a control section operable to control said transmission/reception section;

each of said slave communication devices comprises a storage section operable to store said master ID and a slave ID that is recognizable by said master communication device, a transmission/reception section operable to perform communication by using the wireless telephone line for said master communication device through said host station, a pager signal reception section operable to receive a pager signal of a radio paging system, and a control section operable to control said transmission/reception section based on a predetermined pager signal received by said pager signal reception section;

said control section of said slave communication device normally keeps the power of said transmission/reception section turned off; and

when said pager signal reception section receives a pager signal, said control section of said slave communication device is operable to determine whether or not the pager signal includes an originating instruction specifying that originating should be performed to an originating telephone number, and when said control section of said slave communication device determines that the originating instruction is not included in the pager signal, said control section of said slave communication device is operable to perform control to maintain that the power of said transmission/reception section of said slave communication device remains off.

32. The master/slave communication device according to claim 31, wherein said control section of said slave communication device is operable to perform control to turn on the power of said transmission/reception section of said slave communication device when said control section of said slave communication device determines that the originating instruction specifying that originating should be performed to the originating telephone number is included in the pager signal.

33. The master/slave communication device according to claim 32, wherein said control section of said slave communication device is operable to control said transmission/reception section of said slave communication device to perform originating to an originating telephone apparatus of the originating telephone number using said master ID after the power of said transmission/reception section of said slave communication device is turned on.

34. The master/slave communication device according to claim 31, wherein, when said pager signal reception section receives the pager signal including the originating telephone number of said originating telephone apparatus, said control section of said slave communication device is operable to perform control to notify a user that a telephone call should be made to the originating telephone apparatus of said originating telephone number.

35. The master/slave communication device according to claim 31, wherein each of the slave communication devices comprises an interrogator operable to receive the slave ID created by said master communication device in said control delegation and to perform transmission and reception of various signals to and from said master communication device, and, when said interrogator receives said slave ID, said control section of each of the slave communication devices is operable to control said storage section to store said slave ID in said storage section, respectively.

36. The master/slave communication device according to claim 31, wherein, when said transmission/reception section of said master communication device receives, during communication with an originating telephone apparatus, a signal indicating an originating telephone number of the originating telephone apparatus and a signal specifying any of the slave communication devices to which control has been delegated that has originated from said originating telephone apparatus, said control section of said master communication device is operable to disconnect the communication with said originating telephone apparatus and to control said transmission/reception section of said master communication device such that said pager signal reception section of said any of the slave communication devices receives a pager signal including an originating instruction specifying that originating should be performed to said originating telephone number.

37. The master/slave communication device according to claim 31, wherein said pager signal reception section of said any of the slave communication devices receives a pager signal including the originating telephone number of the originating telephone apparatus and an originating instruction specifying that originating should be performed to said originating telephone number which has originated from the originating telephone apparatus.

38. A master/slave communication device comprising a master communication device having a unique master ID set therefor for using a wireless communication line provided by a host station and one or more slave communication devices receiving control delegation from said master communication device so as to perform communication by using the wireless communication line for said master communication device, wherein:

said master communication device comprises a transmission/reception section operable to perform wireless communication through said host station by transmitting said master ID to said host station, and a control section operable to control said transmission/reception section;

each of said slave communication devices comprises a storage section operable to store said master ID and a slave ID that is recognizable by said master communication device, a transmission/reception section operable to perform communication by using the wireless telephone line for said master communication device through said host station, a pager signal reception section operable to receive a pager signal of a radio paging system, a control section operable to control said transmission/reception section based on a predetermined pager signal received by said pager signal reception section, and an interrogator operable to receive the slave ID created by said master communication device in said control delegation and to perform transmission and reception of various signals to and from said master communication device, wherein when said interrogator receives said slave ID, said control section is operable to control said storage section to store said slave ID in said storage section; and

said storage section of each of the slave communication devices has a pager ID stored therein for the pager signal received by said pager signal reception section, respectively, and said control section of each of said slave communication devices is operable to control said storage section and said interrogator to read and transmit said pager ID to said master communication device in said control delegation, respectively.

39. A master/slave communication device comprising a master communication device having a unique master ID set therefor for using a wireless communication line provided by a host station and one or more slave communication devices receiving control delegation from said master communication device so as to perform communication by using the wireless communication line for said master communication device, wherein:

said master communication device comprises a transmission/reception section operable to perform wireless communication through said host station by transmitting said master ID to said host station, and a control section operable to control said transmission/reception section;

each of said slave communication devices comprises a storage section operable to store said master ID and a slave ID that is recognizable by said master communication device, a transmission/reception section operable to perform communication by using the wireless telephone line for said master communication device through said host station, a pager signal reception section operable to receive a pager signal of a radio paging system, and a control section operable to control said transmission/reception section based on a predetermined pager signal received by said pager signal reception section; and

said master communication device further comprises a storage section operable to store a pager ID of each of the slave communication devices to which control has been delegated, and said control section of said master communication device is operable to read said pager ID from said storage section of said master communication device and to control said transmission/reception section of said master communication device to perform originating to the respective pager ID of at least one of said slave communication devices to which control has been delegated such that said pager signal reception section of said at least one of said slave communication devices receives the pager signal including the originating telephone number and the originating instruction specifying that originating should be performed to said originating telephone number.

40. The master/slave communication device according to claim 39, wherein said master communication device further comprises a responder operable to receive the pager ID from each of the slave communication devices in said control delegation and to perform transmission and reception of various signals to and from each of the slave communication devices, and said control section of said master communication device is operable to store each pager ID received from each of the slave communication devices in said storage section of said master communication device, to create slave IDs corresponding in number to the number of slave communication devices to which control is to be delegated, and to control said responder to transmit the slave IDs to the slave communication devices to which control is to be delegated, respectively.

41. A wireless communication system comprising:

a master communication device having a unique master ID set therefor for using a wireless telephone line;

one or more slave communication devices operable to each receive control delegation from said master communication device so as to perform communication by using the wireless telephone line for said master communication device; and

a host station operable to perform control of communication using said wireless telephone line and to perform control of the transmission of a pager signal of a radio paging system;

wherein said master communication device comprises a transmission/reception section operable to perform wireless communication through said host station by transmitting said master ID to said host station, and a control section operable to control said transmission/reception section, and

each of said slave communication devices comprises a storage section operable to store said master ID and a slave ID that is recognizable by said master communication device, a transmission/reception section operable to perform communication by using the wireless telephone line for said master communication device through said host station, a pager signal reception section operable to receive a pager signal of the radio paging system, and a control section operable to control said transmission/reception section based on a predetermined pager signal received by said pager signal reception section.

42. The wireless communication system according to claim 41, wherein said host station has a plurality of base stations operable to perform transmission/reception of a radio signal by using said wireless telephone line and to receive a radio signal which originated from said transmission/reception section of said master communication device or said transmission/reception section of each of said slave communication devices, respectively, so as to perform location registration.