Self-configuring network telephone system and method

• US 7,058,023 B2
• Filed: 09/11/2002
• Issued: 06/06/2006
• Est. Priority Date: 09/11/2002
• Status: Expired due to Fees

• Current Assignee: Sol H. Wynn
• Original Assignee: Sol H. Wynn
• Inventors: Wynn, Sol H.
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): Harper, Kevin C.
• Application Number:
  US10/242,291
• Publication Number:
  US 20040047297A1
• Time in Patent Office: 1,364 Days
• Field of Search: 370/389, 370400-401, 370/422, 370/260, 370/254, 370/431, 379/201.01, 379/201.12, 455/413
• US Class Current: 370/254
• CPC Class Codes: H04L 61/5038 for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
• CPC Class Codes: H04L 61/5046 Resolving address allocation conflicts; Testing of addresses testing when self-assigning an address H04L61/5092
• CPC Class Codes: H04L 61/5092 by self-assignment, e.g. picking addresses at random and testing if they are already in use
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04M 3/42323 PBX's with CTI arrangements
• CPC Class Codes: H04M 3/533 Voice mail systems
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42

Abstract

A self-configuring telephone device interconnected by a network to other network telephone devices. The network telephone device is especially adapted to connect to other similar devices on a network, such as a local area network, without the need for a central controller or secondary wiring. A network telephone sends a broadcast over the network with a predetermined number. If there is no other telephone on the network, the network telephone assigns the predetermined number to itself and notifies the network. If there is another telephone on the network, the phone receives a message so indicating and a directory of numbers from which to choose a non-conflicting telephone number. When a non-conflicting number is found, the telephone adopts the number and informs the network. Voice mail and calls between outside lines and a network phone are supported as well.

Claims

1. A method for automatically configuring a network phone system having a first network phone and a second network phone coupled to a network, comprising:

receiving a directory message over the network from the second network phone, the directory message including a telephone directory that includes at least one assigned extension network phone number;

finding a non-conflicting extension network phone number from the received telephone directory;

adopting the found non-conflicting extension network phone number for the first network phone; and

broadcasting the adopted non-conflicting extension network phone number over the network.

2. The method for configuring as recited in claim 1, further comprising broadcasting a command containing a predetermined extension network phone number by sending out a broadcast frame with a ‘

Phone Number Tryout Command’

prior to receiving the directory message.

3. The method for configuring as recited in claim 2 further comprising receiving a ‘

Number Already Exists Command’

from the second network phone.

4. The method for configuring as recited in claim 1, wherein the directory message is a ‘

Directory Transmit Command’

.

5. The method for configuring as recited in claim 1, wherein broadcasting the adopted non-conflicting extension network phone number over the network is performed by sending out a broadcast frame with a ‘

Phone Number Transmit Command’

.

6. The method for configuring as recited in claim 1, wherein finding a non-conflicting network phone number includes:

selecting an available extension network phone number using the telephone directory;

broadcasting, over the network, a command containing the selected available extension network phone number; and

if no response from the network occurs during a timeout period, adopting the selected available non-TCP/IP network phone number as the number for the first network phone.

7. The method for configuring as recited in claim 6, wherein broadcasting a command containing the selected available extension network phone number is performed by send a broadcast frame with a ‘

Phone Number Tryout Command’

.

8. The method for configuring as recited in claim 1, further comprising, after receiving the directory message, acknowledging the receipt of the directory message.

9. The method for configuring as recited in claim 8, wherein acknowledging the receipt of the directory message is performed by sending a ‘

Directory Received Command’

.

12. The method for automatically configuring a network phone system as recited in claim 1, further comprising receiving a number-assigned response over the network, prior to the receiving a directory message over the network.

13. The method as recited in claim 12, further comprising broadcasting a message containing a predetermined extension network phone number over the network prior to receiving a number-assigned response.

10. A method for configuring a network phone system having an at least one network phone coupled to network, comprising:

selecting a predetermined extension network phone number as the number for the at least one network phone;

broadcasting the predetermined extension network phone number over the network;

requesting a phone directory be sent from any other network phone coupled to the network; and

if no response is received, adopting the selected predetermined extension network phone number as the number for the at least one network phone.

11. The method for configuring as recited in claim 10, wherein broadcasting the predetermined extension network phone number over the network is performed by sending a broadcast frame with a ‘

Phone Number Broadcast Command’

.

14. A first network phone useful in association with a second network phone, the first network phone and the second network phone coupled to a network, comprising:

memory circuitry configured to receive a directory message over the network from the second network phone, the directory message including a telephone directory that includes at least one assigned extension network phone number;

memory circuitry configured to find a non-conflicting extension network phone number from the received telephone directory;

memory circuitry configured to adopt the found non-conflicting extension network phone number for the first network phone; and

memory circuitry configured to broadcast the adopted non-conflicting extension network phone number over the network.

15. The first network phone as recited in claim 14, further comprising memory circuitry configured to broadcast a command containing a predetermined extension network phone number by sending out a broadcast frame with a ‘

Phone Number Tryout Command’

prior to receiving the directory message.

16. The first network phone as recited in claim 15 further comprising memory circuitry configured to receive a ‘

Number Already Exists Command’

from the second network phone.

17. The first network phone as recited in claim 15, wherein the directory message is a ‘

Directory Transmit Command’

.

18. The first network phone as recited in claim 14, wherein broadcasting the adopted non-conflicting extension network phone number over the network is performed by sending out a broadcast frame with a ‘

Phone Number Transmit Command’

.

19. The first network phone as recited in claim 14, wherein memory circuitry configured to find the non-conflicting network phone number includes:

memory circuitry configured to select an available extension network phone number using the telephone directory;

memory circuitry configured to broadcast, over the network, a command containing the selected available extension network phone number; and

if no response from the network occurs during a timeout period, memory circuitry configured to adopt the selected available extension phone number as the number for the first network phone.

20. The first network phone as recited in claim 19, wherein broadcasting a command containing the selected available number is performed by send a broadcast frame with a ‘

Phone Number Tryout Command’

.

21. The first network phone as recited in claim 14, further comprising memory circuitry configured to, after receiving the directory message, acknowledge the receipt of the directory message.

22. The first network phone as recited in claim 21, wherein acknowledging the receipt of the directory message is performed by sending a ‘

Directory Received Command’

.

23. The first network phone as recited in claim 14, further comprising memory circuitry configured to receive a number-assigned response over the network, prior to the receiving a directory message over the network.

24. The first network phone as recited in claim 23, further comprising memory circuitry configured to broadcast a message containing a predetermined non-TCP/IP network phone number over the network prior to receiving a number-assigned response.

25. A network phone coupled to a network, the network phone comprising:

memory circuitry configured to select a predetermined extension network phone number as the number for the network phone;

memory circuitry configured to broadcast the predetermined extension network phone number over the network;

memory circuitry configured to request a phone directory be sent from any other network phone coupled to the network; and

if no response is received, memory circuitry configured to adopt the selected predetermined extension network phone number as the number for the network phone.

26. The network phone as recited in claim 25, wherein broadcasting the predetermined extension network phone number over the network is performed by sending a broadcast frame with a ‘

Phone Number Broadcast Command’

.