Local control of call features in a telephone system

• US 6,882,716 B2
• Filed: 03/28/2001
• Issued: 04/19/2005
• Est. Priority Date: 03/28/2001
• Status: Expired due to Fees

• Current Assignee: Analog Devices, Inc., Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Clapper, Edward O., Gambil, Kevin P.
• Primary Examiner(s): Hong, Harry S.
• Application Number:
  US09/820,564
• Publication Number:
  US 20020141556A1
• Time in Patent Office: 1,483 Days
• Field of Search: 379/170, 379/184, 379/194, 379/195, 379/201.01, 379/201.05, 379/201.12, 379/202.01, 379/252, 379/377, 379/393, 379/1.01, 379/102.06, 379/157, 379/160, 379/161, 379/165, 379/167.01, 379/167.05, 379/167.11, 379/168, 455/513, 370/295, 370/389, 370/442, 370/489
• US Class Current: 379/201.01
• CPC Class Codes: H04M 1/715 using two or more extensions per line cordless telephones H04M1/725
• CPC Class Codes: H04M 1/7385 Programmable or microprocessor-controlled
• CPC Class Codes: H04M 3/42314 in private branch exchanges
• CPC Class Codes: H04M 3/428 Arrangements for placing incoming calls on hold
• CPC Class Codes: H04M 3/56 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15
• CPC Class Codes: H04Q 1/44 using alternate current H04Q1/50 takes precedence

Abstract

A residential phone system allows for local control of call features from any phone extension. The phone system may include a microcontroller that communicates along the phone lines at a non-utilized frequency to several extension phones in a residence. The microcontroller permits each phone to control call features such as call waiting, conference calling, paging, or other features. A control box may be included at any or all of the extension phones to provide a convenient user interface to access the call features.

Claims

1. A method of locally controlling call features comprising:

signaling a request for a call feature from a first telephone over a phone line;

processing the request in a processing element which is separate from and remote from said first telephone, by automatically setting said first telephone which signaled the request am a master controller which can send commands,

detecting a command from another telephone, other than said master, and setting said another telephone as a slave telephone which receive commands from the master;

detecting a call feature request from said slave telephone; and

determining, in the master telephone, whether to grant access to the slave telephone in response to the request, and to command the slave telephone, over the phone line.

2. The method of claim 1, wherein said detecting a call feature comprises requests for a call feature, at a frequency not used for voice or voice-over-data communications.

3. The method of claim 1, further comprising automatically resetting assignment of master and slave after a predetermined time of inactivity.

4. The method of claim 1, further comprising paging the slave phone from the master phone.

5. The method of claim 1, further comprising conferencing the slave phone with the master phone.

6. The method of claim 1, further comprising placing the phone line on hold.

21. The method as in claim 1, wherein said call feature request received from the slave telephone comprises taking the slave telephone off-hook.

22. The method as in claim 21, wherein said call feature request is a request to use an outside line.

7. A method of processing call features comprising:

submitting a request for a call feature from a first phone extension to a local controller which is separate from said first phone;

automatically designating the first phone as a master which can send commands;

receiving a request for a call feature from another telephone;

designating said another telephone as a slave telephone which receives commands from the master;

determining in the master whether to grant the call feature to the slave; and

transmitting instructions regarding the call feature over the local phone lines at a frequency not used for voice or voice-over-data communications.

8. The method of claim 7, wherein there are a plurality of slave phones, and further comprising transmitting a call waiting request to the master phone if any slave phone is activated.

9. The method of claim 8, further comprising conferencing a slave phone which has been activated with the master phone in response to the call waiting request.

10. The method of claim 7, further comprising placing the master phone on hold.

11. The method of claim 7, further comprising paging a slave phone from the master phone.

23. A method as in claim 7, wherein said request for a call feature comprises taking the slave telephone off-hook.

24. The method as in claim 23, wherein said call feature request is a request to use an outside line.

12. A local phone system comprising:

a controller which receives requests for call features from a plurality of phone extensions, wherein the controller processes the requests and transmits instructions to the phone extensions based on the requests and which automatically designates a last phone that makes a request as a master phone when no other phone is already a master phone, that can grant requests made by all other phones, and which other phones are designated as slave phones; and

a first transceiver which provides communications between the controller and the phone extensions over a phone line.

13. The local phone system of claim 12, further comprising a second transceiver used for voice communications.

14. The local phone system of claim 13, wherein the first transceiver operates at a different freguency than the second transceiver.

15. The local phone system of claim 12, wherein the call features include call waiting.

16. The local phone system of claim 12, wherein the call features include conference calling.

17. The local phone system of claim 12, wherein the call features include paging.

18. The local phone system of claim 12, wherein the call features include call holding.

19. The local phone system of claim 12, wherein the call features are accessed through the phone handsets.

20. The local phone system of claim 12, further comprising a control center connected to at least one phone extension, wherein the control center provides a user interface to access the call features.

25. The system as in claim 12, wherein the request includes an action of taking a telephone off-hook.

26. A system as in claim 25, wherein the request includes requesting an outside line.