AUTOMATED VOICE OVER IP DEVICE VLAN-ASSOCIATION SETUP

• US 20110200037A1
• Filed: 02/14/2011
• Published: 08/18/2011
• Est. Priority Date: 12/31/2002
• Status: Active Grant

• Current Assignee: RPX Corporation
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: See, Michael, Boullet, Marc
• Granted Patent: US 8,537,830 B2
• Time in Patent Office: Days
• US Class Current: 370/352
• CPC Class Codes: H04L 12/4641 Virtual LANs, VLANs, e.g. virtual private networks [VPN] LAN interconnection over a bridge based backbone H04L12/462; encapsulation techniques H04L12/4633; routing of packets H04L45/00; packet switches H04L49/00; virtual private networks for security H04L63/0272
• CPC Class Codes: H04L 41/0893 Assignment of logical groups to network elements
• CPC Class Codes: H04L 41/0895 Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
• CPC Class Codes: H04L 65/1073 Registration or de-registration
• CPC Class Codes: H04L 65/1101 Session protocols

Abstract

A system and method are disclosed for automatically registering various system attributes with a VoIP device such as an VoIP phone. The system attributes are provided by a network, preferably an adjacent switching device made aware of the system attributes through one of a number of learning mechanisms. The system attributes may include one or more of the following: the VLAN identification used for VoIP communications in the subnet in which the VoIP phone is connected; the switching device identification, switching device slot, and switching device port number to which the VoIP phone is connected. The switch, slot, and port are used in some embodiments by an IP PBX system to construct a relational database that associates the geographic location of the connection with the IP phone for purposes of reporting the physical location of the VoIP user to emergency response personnel. The system and method for automatically registering various system attributes enables the relational database to be updated prompt and accurate.

Claims

1. A device for automatically providing at least one system attribute to one or more Voice-over-Internet Protocol (IP) devices in a network, comprising:

(a) a memory containing a set of instructions; and

(b) a processor for processing the set of instructions wherein the set of instructions include instructions for receiving a Voice-over-IP device identification message from one or more Voice-over-IP devices adjacent to the device when the one or more Voice-over-IP devices are operably coupled to the device; and

instructions for automatically responding with a device identification acknowledgement message originating from the device to the one or more Voice-over-IP devices, the device identification acknowledgement message comprising one or more system attributes, including connectivity information; and

instructions for conveying the connectivity information through the device to a private branch exchange system that maintains an external relation database wherein the connectivity information is associated with a geographic location of the one or more Voice-over-IP devices.

2. The device of claim 1 wherein the device identification acknowledgment message is a Voice-over-IP device identification acknowledgment message and wherein there is a direct connection between the one or more Voice-over-IP devices and the device.

3. The device of claim 1 wherein the device is switching device, and the one or more system attributes comprise a switching device identification as well as a port identification of a port to which the one or more Voice-over-IP devices are connected.

4. The device of claim 1 wherein the one or more Voice-over-IP devices connected to the device comprise one or more Internet Protocol (IP) phones.

5. The device of claim 1 wherein the one or more Voice-over-IP devices are operably coupled to the device at the time of initialization of the one or more Voice-over-IP devices.

6. The device of claim 2 wherein the Voice-over-IP device identification message and the Voice-over-IP device identification acknowledgment message are Attribute Advertisement Protocol messages and wherein the one or more system attributes include a Virtual Local Area Network (VLAN) identification of a Voice-over-IP VLAN assigned in the network.

7. The device of claim 6 wherein a destination address of the Voice-over-IP device identification message includes a unique medium access control (MAC) address indicative of a system attribute exchange between the one or more Voice-over-IP devices and device.

8. The device of claim 2 wherein the Voice-over-IP device identification message is sent in response to a device initialization message.

9. The device of claim 8 wherein the device is a switching device and the device initialization message is a switching device initialization message transmitted by the switching device upon the initialization of the switching device.

10. The device of claim 1 wherein the one or more system attributes comprise connectivity information pertaining to physical connection of the one or more Voice-over-IP devices at the device and wherein the external relation database has one or more tables that associate the device and a slot number and a port number on which the one or more Voice-over-IP devices connect to the device with the known geographic distribution of the device in the network.

11. The device of claim 10 wherein one or more system attributes are transmitted to the external relation database that associates at least one port number to its geographic location, whereby the physical location of the one or more Voice-over-IP devices is determined from the IP address of the one or more Voice-over-IP devices.

12. The device of claim 10 wherein one or more system attributes are transmitted to the external relation database that associates at least one port number to its geographic location, whereby the physical location of the one or more Voice-over-IP devices is determined from the MAC address of the one or more Voice-over-IP devices.

13. The device of claim 1 wherein the geographic location of the one or more Voice-over-IP devices is quickly ascertained by emergency response personnel.

14. A system attribute exchange system in a distributed communications network for automatically providing at least one system attribute for the purposes of configuring Voice-over-Internet Protocol (IP) communications, the system comprising:

(a) a Voice-over-IP device adapted to automatically transmit a Voice-over-IP device identification message when said Voice-over-IP device is operatively coupled to the network;

(b) a node, operatively coupled to said network and adjacent to said Voice-over-IP device, adapted to automatically transmit a Voice-over-IP device identification acknowledgement message that originates at the node to said Voice-over-IP device, said Voice-over-IP device identification acknowledgement message including one or more system attributes for said Voice-over-IP communications;

(c) at least one of the one or more system attributes including a port identifier of a port at said node to which the Voice-over-IP device is connected; and

(d) the port number at which the Voice-over-IP device is connected is communicated to a relational database that associates the physical location of the port with the IP address and extension number of the Voice-over-IP device, whereby the location of a Voice-over-IP device user can be ascertained.

15. The system attribute exchange system of claim 14 wherein at least one system attribute includes a Virtual Local Area Network (VLAN) identification over which Voice-over-IP communications are conducted.

16. The system attribute exchange system of claim 14 wherein the node is a switching device and wherein the system attribute exchange system further includes an IP private branch exchange (PBX) system comprising said relational database.

17. The system attribute exchange system of claim 14 wherein the Voice-over-IP device is an Internet Protocol (IP) phone.

18. The system attribute exchange system of claim 14 wherein the Voice-over-IP device is operably coupled to the node at the time of initialization of the Voice-over-IP device.

19. The system attribute exchange system of claim 14 wherein the Voice-over-IP device identification message and the Voice-over-IP device identification acknowledgment message are Attribute Advertisement Protocol messages.

20. The system attribute exchange system wherein the location of a Voice-over-IP device user can be ascertained by emergency response personnel.