Wireless test mode for a cordless telephone

• US 5,539,803 A
• Filed: 09/09/1994
• Issued: 07/23/1996
• Est. Priority Date: 09/09/1994
• Status: Expired due to Term

• Current Assignee: Avaya Incorporated
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Weber, Donald J., Rivingston, Thorp, Lescinsky, Frank W., Lee, Vandy W., Hsia, Richard Y., Greeley, Douglas P., Forlenzo, Donato J., Elson, Gerard W., Corvo, Arthur F., Bhat, Ghanshyam A.
• Primary Examiner(s): Chin, Stephen
• Assistant Examiner(s): LOOMIS, PAUL A
• Application Number:
  US08/304,026
• Time in Patent Office: 683 Days
• Field of Search: 379/1, 379/21, 379/27, 379/29, 379/32, 379/34, 379/22, 379/58, 379/61, 455/34.1, 455/67.1
• US Class Current: 379/21
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04M 1/24 Arrangements for testing
• CPC Class Codes: H04M 1/72505 Radio link set-up procedures
• CPC Class Codes: H04M 1/72516 with means for out-of-range alerting
• CPC Class Codes: H04M 1/733 with a plurality of base stations connected to a plurality of lines for selection in cordless PBX H04W84/16

Abstract

A cordless telephone set advantageously includes a wireless test mode accessible by a user for evaluating performance levels of operating parameters in the cordless telephone set in diverse geographical locations. When configured in a normal operating mode, the cordless telephone set provides normal wireless communications. When configured in the wireless test mode, the cordless telephone set provides audible and visual input to its user for use in determining a maximum acceptable separation distance for satisfactory communications between a telephone handset unit and its associated base unit in the cordless telephone set. This operating range determination for the cordless telephone set is achieved by providing a simulation of a recognizable tone, such as dial tone, to which a user subjectively listens while testing an application environment. At the same time, statistical readings of signal strength and voice quality also are provided in a display on the telephone handset unit while in this wireless test mode. The simulated tone and the statistical readings allow the user to quickly and easily correlate effective, usable operating range for the cordless telephone set.

Claims

1. A cordless telephone comprising:

A handset unit and a base unit;

circuit means for configuring both the handset unit and the base unit in a first operating mode for providing wireless telephone communications between said handset unit and said base unit, and in a second operating mode for testing said wireless telephone communications between the handset unit and the base unit;

control means for selectably configuring said circuit means for operation of the handset unit and base unit in either said first operating mode or said second operating mode; and

means for generating a test signal and providing said test signal in said wireless telephone communications between the handset unit and the base unit while said units are configured in the second operating mode, said handset unit and base unit being further configured while in said second operating mode for obtaining signal parameters from said test signal for testing said wireless telephone communications, said signal parameters determining the quality of signal communications between said handset unit and said base unit.

2. The cordless telephone as in claim 1 wherein said test signal includes an audible tone generated on a communication channel.

3. The cordless telephone as in claim 1 wherein said signal parameters include statistical indications of both a received signal strength and a voice quality of said test signal.

4. The cordless telephone as in claim 3 wherein said signal parameters further include an audible indication of the quality of said test signal.

5. The cordless telephone as in claim 1 wherein the test signal is generated by the base unit and received by the handset unit while operating in the second operating mode.

6. The cordless telephone as in claim 4 further including means for transmitting the test signal over a communication channel.

7. The cordless telephone as in claim 4 further including means for transmitting the test signal over a plurality of communication channels.

8. The cordless telephone as in claim 1 wherein said wireless telephone communications include establishing a radio link between said handset unit and said base unit for transmitting and receiving audio information and data between said handset unit and said base unit.

9. The cordless telephone as in claim 7 arranged for operating in a frequency hopping system, said plurality of communication channels being generated in the frequency hopping system.

10. The cordless telephone as in claim 1 wherein the control means includes keyboard entry means for entering predetermined codes for configuring said circuit means, entering a first predetermined code configuring the circuit means for operation of the handset unit and base unit in the first operating mode and entering a second predetermined code configuring the circuit means for operation of the handset unit and base unit in the second operating mode.

11. The cordless telephone as in claim 10 wherein the control means further includes selectable predetermined codes for accessing selected information contained in memory within the cordless telephone, said information being available while the handset unit and the base unit are both configured in the second operating mode.

12. In a cordless telephone, a handset unit for providing communications with a base unit, the handset unit comprising:

circuit means for configuring the handset unit in a first operating mode for providing wireless telephone communications between said handset unit and said base unit, and in a second operating mode for testing said wireless telephone communications between the handset unit and the base unit;

control means for selectably configuring said circuit means for operation of the handset unit in either said first operating mode or said second operating mode; and

means for receiving a test signal provided in said wireless telephone communications from the base unit to the handset unit while said handset unit is configured in the second operating mode, said handset unit being further configured while in said second operating mode for obtaining signal parameters from said test signal for testing said wireless telephone communications, said signal parameters determining the quality of signal communications between said handset unit and said base unit.

13. The handset unit as in claim 12 wherein the test signal is received over a communication channel.

14. The handset unit as in claim 12 wherein the test signal is received over a plurality of communication channels.

15. The handset unit as in claim 14 arranged for operating in a frequency hopping system, said plurality of communication channels being generated in the frequency hopping system.

16. The handset unit as in claim 12 wherein the control means includes keyboard entry means for entering predetermined codes for configuring said circuit means, entering a first predetermined code configuring the circuit means for operation of the handset unit in the first operating mode and entering a second predetermined code configuring the circuit means for operation of the handset unit in the second operating mode.

17. The handset unit as in claim 16 wherein the control means further includes selectable predetermined codes for accessing selected information stored in memory contained within the handset unit, said information being available while the handset unit is configured in the second operating mode.

18. In a cordless telephone, a base unit for providing communications with a handset unit, the base unit comprising:

circuit means for configuring the base unit in a first operating mode for providing wireless telephone communications between said base unit and said handset unit, and in a second operating mode for testing said wireless telephone communications between the base unit and the handset unit;

control means for selectably configuring said circuit means for operation of the base unit in either said first operating mode or said second operating mode; and

means for generating a test signal and providing said test signal in said wireless telephone communications between the handset unit and the base unit while said base unit is configured in the second operating mode, said base unit being further configured while in said second operating mode for obtaining signal parameters from said test signal for testing said wireless telephone communications, said signal parameters determining the quality of signal communications between said handset unit and said base unit.

19. The base unit as in claim 18 wherein said signal parameters include statistical indications of both a received signal strength and a voice quality of said test signal.

20. The base unit as in claim 18 further including means for transmitting the test signal over a communication channel.

21. The base unit as in claim 19 further including means for transmitting the test signal over a plurality of communication channels.

22. The base unit as in claim 21 arranged for operating in a frequency hopping system, said plurality of communication channels being generated in the frequency hopping system.

23. The base unit as in claim 18 wherein the control means includes keyboard entry means for entering predetermined codes for configuring said circuit means, entering a first predetermined code configuring the circuit means for operation of the base unit in the first operating mode and entering a second predetermined code configuring the circuit means for operation of the base unit in the second operating mode.

24. The base unit as in claim 23 wherein the control means further includes selectable predetermined codes for accessing selected information contained in memory within the base unit, said information being available while the base unit is configured in the second operating mode.

25. A cordless telephone system comprising:

A handset unit and a base unit;

circuit means in said handset unit for configuring both the handset unit and the base unit in a first operating mode and a second operating mode, while in said first operating mode, said handset unit and said base unit are configured for providing wireless telephone communications with each other and, while in said second operating mode, said handset unit and base unit are configured for testing said wireless telephone communications;

control means in said handset unit for selectably configuring said circuit means for operation of the handset unit and base unit in either said first operating mode or said second operating mode; and

means in said base unit for generating a test signal and providing said test signal in said wireless telephone communications between the handset unit and the base unit while said units are configured in the second operating mode, said handset unit and base unit being further configured while in said second operating mode for obtaining signal parameters from said test signal for testing said wireless telephone communications, said signal parameters determining the quality of signal communications between said handset unit and said base unit.

26. A method of communicating between a base unit and a handset unit in a cordless telephone, the method comprising the steps of;

configuring both the handset unit and the base unit in a first operating mode for providing wireless telephone communications between said handset unit and said base unit, and in a second operating mode for testing said wireless telephone communications between the handset unit and the base unit;

selectably operating the handset unit and base unit in either said first operating mode or said second operating mode responsive to said configuring step;

generating a test signal for testing said wireless telephone communications while said handset unit and base unit are configured in the second operating mode;

providing said test signal in said wireless telephone communications between the handset unit and the base unit while said units are configured in the second operating mode; and

further configuring said base unit and said handset unit while in said second operating mode for obtaining signal parameters from said test signal for testing said wireless telephone communications, said signal parameters determining the quality of signal communications between the handset unit and the base unit.

27. The method of claim 26 wherein the test signal is generated by the base unit and received by the handset unit while operating in the second operating mode.

28. The method of claim 26 further including the step of entering predetermined codes for configuring said handset unit and said base unit, entering a first predetermined code configuring the handset unit and base unit in the first operating mode and entering a second predetermined code configuring the handset unit and base unit in the second operating mode.

29. The method of claim 28 wherein the predetermined codes further includes selectable predetermined codes for accessing selected information contained in memory within the cordless telephone, said information being available while the handset unit and the base unit are both configured in the second operating mode.