METHOD AND APPARATUS FOR NOTIFICATION OF MULTIPLE TELEPHONY DEVICES

1 . An Internet Protocol telephony system comprising:

a registration unit configured to store, in association with a customer record, a notification list of one or more telephony devices that that are to be notified upon receipt by the Internet Protocol telephony system of a communication addressed to a customer identifier corresponding to the customer record;

a signal handling interface configured to receive a signal originated by a telephony device;

a rules engine configured to consult the notification list and apply rules logic to determine in what order the one or more telephony devices on the notification list are to be notified; and

a call processing interface configured to route notifications to the one or more telephony devices.

2 . The system of claim 1 , wherein the signal handling interface is configured to receive a signal originated by a computer application executed at a telephony device, the signal requesting that the notification list be modified with respect to the telephony device; and wherein the rules engine is configured to consult the notification list and to apply the rules logic upon receipt by the Internet Protocol telephony system of the communication addressed to the customer identifier corresponding to the customer record.

3 . The system of claim 1 , wherein the signal is configured to add the telephony device to the customer record.

4 . The system of claim 1 , wherein the signal is configured to control the notification list.

5 . The system of claim 1 , wherein the signal is configured to request one of the following: (1) that the telephony device be included on the notification list; (2) that the telephony device be removed from the notification list; and (3) that a ranking order of the telephony device on the list be modified.

6 . The system of claim 1 , wherein the rules logic requires that the one or more telephony devices be essentially simultaneously notified.

7 . The system of claim 1 , wherein the rules logic requires that the one or more telephony devices be notified sequentially in accordance with ranking order information respectively associated with the one or more telephony devices on the notification list.

8 . The system of claim 1 , wherein the rules logic requires that the one or more telephony devices be notified sequentially in accordance order of telephony device enrollment on the notification list.

9 . The system of claim 1 , wherein at least one or more of the registration unit, the signaling handling interface, the rules engine, and the call processing interface are implemented by a computer processor.

10 . A telephony device comprising:

a processor configured to generate a signal configured to control a notification list maintained by an Internet Protocol telephony system with respect to the telephony device, the notification list being of one or more devices that are to be alerted upon receipt by the Internet Protocol telephony system of a communication addressed to a particular customer identifier;

an interface configured to transmit the signal to the Internet Protocol telephony system.

11 . The telephony device of claim 10 , wherein the signal is further configured to add the telephony device to a customer record associated with the particular customer identifier.

12 . The telephony device of claim 10 , wherein the signal is configured to prompt the Internet Protocol telephony system to perform a modification of the notification list.

13 . The telephony device of claim 12 , wherein the modification is one of the following: (1) including the telephony device on the notification list; (2) removing the telephony device from the notification list; and ( 3 ) changing a ranking order of the telephony device on the notification list.

14 . The telephony device of claim 10 , wherein the interface is a transceiver configured to transmit the signal to a wireless access point which is in data communication with the Internet Protocol telephony system and, after the telephony device has been included on the notification list, to receive an incoming communication addressed to the particular customer identifier.

15 . The telephony device of claim 10 , further comprising a user interface, and wherein the processor is configured to execute a computer application comprising instructions stored on non-transient computer-readable medium, wherein the user interface facilitates user interaction with the application.

16 . The telephony device of claim 15 , wherein the processor is configured to include computer application authentication information in the signal.

17 . The telephony device of claim 15 , wherein the processor is configured to register the computer application authentication information with the Internet Protocol telephony system upon installation of the computer application.

18 . The telephony device of claim 15 , wherein the user interface is configured to request notification option information from the user, and wherein the processor is configured to include the notification option information in at least one or more of the signal and another signal to the Internet Protocol telephony system.

19 . The telephony device of claim 18 , wherein the notification option information includes an indication of ranking order of the telephony device on the notification list.

20 . The telephony device of claim 19 , wherein the processor is configured to receive a constituency of other telephony devices already included on the notification list and to provide the constituency to the user on the user interface, and to receive through the user interface an indication of ranking order of the telephony device relative to the constituency of other telephony devices.

21 . A method of operating a communications network via an Internet Protocol telephony system comprising:

receiving a signal generated by a telephony device, the signal configured to control a notification list, the notification list being of one or more telephony devices that are to be alerted upon receipt by the Internet Protocol telephony system of a communication addressed to a particular customer identifier;

upon receipt of the signal, performing the modification of the notification list in accordance with the request; and

upon receipt of the communication addressed to the particular customer identifier, routing a notification of the communication to one or more telephony devices on the notification list.

22 . The method of claim 21 , wherein the signal is further configured to add the telephony device to a customer record associated with the particular customer identifier.

23 . The method of claim 21 , wherein the signal is configured to the signal configured to prompt modification of the notification list.

24 . The method of claim 21 , wherein the modification is one of the following:

(1) including the telephony device on the notification list; (2) removing the telephony device from the notification list; and (3) changing a ranking order of the telephony device on the notification list.

25 . The method of claim 21 , wherein the signal is configured to request one of the following: (1) that the telephony device be included on the notification list; (2) that the telephony device be removed from the notification list; and (3) that a ranking order of the telephony device on the notification list be modified.