Call management services to telephone devices which are connected to afixed wireless access subscriber unit

• US 6,014,560 A
• Filed: 12/20/1996
• Issued: 01/11/2000
• Est. Priority Date: 10/25/1996
• Status: Expired due to Fees

• Current Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Original Assignee: Nortel Networks Corporation
• Inventors: Kramer, Kris William
• Primary Examiner(s): TROST IV, WILLIAM GEORGE
• Application Number:
  US08/777,673
• Time in Patent Office: 1,117 Days
• Field of Search: 455/403, 455/422, 455/414-415, 455/426, 455/458, 455/462, 455/550, 455/552, 455/554, 455/561, 455/567, 455/465, 379/201, 379/207, 379/210-212
• US Class Current: 455/414.4
• CPC Class Codes: H04W 84/14 WLL [Wireless Local Loop]; RLL [Radio Local Loop]

Abstract

A method of providing call management services to a conventional wireline telephony device (or devices) which receive telephony services by means of a fixed wireless access subscriber unit. Such a subscriber unit (SU) includes a wireless transceiver for communicating with a wireless network and a telephone subscriber line interface which connects to a telephone subscriber line to which the telephony devices are connected. Such a subscriber unit is configured to carry out the following steps. Upon receipt of an incoming message (which typically occurs during call set up of an incoming call) subscriber unit evaluates whether call management services information is present, and if so searches the message, according to the wireless protocol for the CMS information and extracts the CMS information. The SU then interprets the received information, determines what information should be passed to the telephony devices to the SU and produces a message containing the relevant information which is then sent to the telephony devices via the telephone subscriber line. The new message may contain information not present in the original incoming message. This new information is retrieved from a user selected directory stored within the SU. The SU may contain a plurality of transceivers and a plurality of subscriber line interfaces wherein said subscriber unit can effectively act as a wireless key system.

Claims

1. A method of providing call management services to a telephone subscriber line coupled to a fixed wireless access subscriber unit, said subscriber unit comprising a controller, at least one wireless receiver for communicating with a wireless network according to a wireless protocol and at least one telephone subscriber line interface for coupling to at least one telephone subscriber line, said method comprising the steps of:

a) receiving a message by said receiver containing call management services (CMS) information according to said wireless protocol;

b) translating said CMS information into a format recognizable to a telephony device coupled to said telephone subscriber line; and

c) sending a signal including said translated CMS information to said telephone subscriber line.

2. The method as claimed in claim 1 wherein step (a) further comprises the steps of:

receiving a call set up message; and

evaluating said call set up message for the presence of CMS information.

3. The method as claimed in claim 1 wherein step (b) further comprises the steps of:

extracting said CMS information from said received message;

interpreting said CMS information; and

encoding said information into a new message in said format.

4. The method as claimed in claim 3 wherein said received message includes at least one calling party number field, said interpreting step comprising the steps of evaluating the number of calling party number fields, and the content of each calling party field, and determining the identific ation information to be encoded.

5. The method as claimed in claim 4, wherein said subscriber unit stores user selected information to be displayed for preselected calling parties, and wherein said determining the identification information to be encoded includes selecting the user selected information to be encoded when the content of a calling party field corresponds to a preselected calling party.

6. The method as claimed in claim 1 wherein step (c) comprises FSK modulating a signal sent to said telephone subscriber line with said CMS information.

7. The method as claimed in claim 5 wherein said subscriber unit sends a signal to said telephone subscriber line including first and second ringing bursts when said message is received and wherein step (c) comprises FSK modulating a said signal with said CMS information between said first and second ringing bursts.

8. The method as claimed in claim 3, wherein the said new message further comprises information obtained internally from the said subscriber unit.

9. The method as claimed in claim 8, wherein the said information obtained internally from the said subscriber unit comprises a time parameter.

10. The method as claimed in claim 9, wherein said received message includes at least one calling party number field, said interpreting step comprising the steps of evaluating the number of calling party number fields, and the content of each calling party field, and determining the identification information to be encoded.

11. The method as claimed in claim 10, wherein said information obtained internally from the said subscriber unit comprises user selected information to be displayed for preselected calling parties, and wherein said determining the identification information to be encoded includes selecting the user selected information to be encoded when the content of a calling party field corresponds to a preselected calling party.

23. A subscriber unit comprising:

at least one wireless transceiver;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC;

a controller adapted to carry out the method of claim 1.

24. A subscriber unit comprising:

at least one wireless transceiver;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC;

a controller adapted to carry out the method of claim 2.

25. A subscriber unit comprising:

at least one wireless transceiver;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC;

a controller adapted to carry out the method of claim 4.

26. A subscriber unit comprising:

at least one wireless transceiver;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC;

a controller adapted to carry out the method of claim 5.

27. A subscriber unit comprising:

at least one wireless transceiver;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC;

a controller adapted to carry out the method of claim 7.

29. A subscriber unit comprising:

at least one communication interface for communicating with a communications network via a suitable medium;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC; and

a controller adapted to carry out the method of claim 8.

30. A subscriber unit comprising:

at least one communication interface for communicating with a communications network via a suitable medium;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC; and

a controller adapted to carry out the method of claim 9.

31. A subscriber unit comprising:

at least one communication interface for communicating with a communications network via a suitable medium;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC; and

a controller adapted to carry out the method of claim 11.

12. A method of providing call management services to a telephone subscriber line coupled to a subscriber unit, said subscriber unit comprising a controller, at least one communications interface for communicating with a communications network and at least one telephone subscriber line interface, said method comprising the steps of:

a) receiving a message containing coded information by said communications interface from said communications network;

b) translating said coded information into a format recognizable to a telephony device coupled to said telephone subscriber line; and

c) sending a signal including said translated coded information to said telephone subscriber line.

13. The method as claimed in claim 12 wherein step (b) further comprises the steps of:

extracting said coded information from said received message;

interpreting said coded information; and

encoding said information into a new message in said format.

14. The method as claimed in claim 13, wherein said subscriber unit stores user selected information to be displayed for preselected calling parties, and wherein said interpreting step includes evaluating said coded information to determine the calling party and selecting the user selected information to be encoded when the content of a calling party field corresponds to a preselected calling party.

15. The method as claimed in claim 12, wherein said new message further comprises information obtained internally from the said subscriber unit.

16. The method as claimed in claim 15, wherein the said information obtained internally from the said subscriber unit comprises a time parameter.

17. The method as claimed in claim 16, wherein said information obtained internally from said subscriber unit comprises stored user selected information be displayed for preselected calling parties, and wherein said interpreting step includes evaluating said CMS information to determine the calling party and selecting the user selected information to be encoded when the content of a calling party filed corresponds to a preselected calling party.

28. A subscriber unit comprising:

at least one communication interface for communicating with a communications network via a medium;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC;

a controller adapted to carry out the method of claim 12.

32. A subscriber unit comprising:

at least one communication interface for communicating with a communications network via a suitable medium;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC; and

a controller adapted to carry out the method of claim 15.

33. A subscriber unit comprising:

at least one communication interface for communicating with a communications network via a suitable medium;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC; and

a controller adapted to carry out the method of claim 16.

18. A wireless subscriber unit for communicating with a wireless network comprising:

at least one telephony interface for connecting to at least one standard telephony device;

at least one transceiver for establishing a communication link with said wireless network; and

a controller for controlling said subscriber unit, said controller comprising;

means for decoding a wireless message containing coded information received by said transceiver in order to extract said coded information;

means for encoding said information into a new message recognizable to said at least one standard telephony device; and

means for sending said new message to said at least one standard telephony device via at least one telephony interface.

19. A wireless subscriber unit for communicating with a wireless network comprising:

at least one telephony interface for connecting to at least one standard telephony device;

at least one transceiver for establishing a communication link with said wireless network;

a controller for extracting call management services (CMS) information from a wireless message received by said transceiver and for encoding said information into a new message recognizable to said at least one standard telephony device; and

a signal processor for sending said new message to said at least one standard telephony device via at least one telephony interface.

20. A subscriber unit as claimed in claim 19, wherein said controller comprises a first controller extracting said CMS information;

a second controller for encoding said information into said new message; and

said signal processor comprises a DSP for FSK modulating signals applied to said telephone subscriber line.

21. A subscriber unit as claimed in claim 19 further comprising a user definable directory for storing calling party information entered by the user corresponding to user selected calling parties, and wherein said controller includes said user stored calling party information in said encoded message for received messages from said user selected calling parties.

22. A subscriber unit as claimed in claim 21 further comprising an internal clock or timing apparatus from which a time parameter is obtained to be included in said new message.

34. A subscriber unit comprising:

at least one communication interface for communicating with a communications network via a suitable medium;

a subscriber line interface circuit (SLIC);

at least one jack coupling a telephone subscriber line to said SLIC; and

a controller adapted to carry out the method of claim 22.