Shared Knowledge in a Telephone System
AssigneeEstech Systems, Inc.
InventorsEric G. Suder, Harold E. A. Hansen, II
Life of this patent
Estimating the term…
Abstract
An information handling system comprises a IP network connecting a hub to a multimedia server and the hub to a data server, and the hub to an IP telephony device that is then coupled to a network device. When a telephone in one local area network within a wide area network has a change in its status, such as going off-hook, a status message will be sent to an associated extension within another local area network connected to the wide area network to thereby cause a status indicator to notify the user at the remote extension that the telephone the first local area network has had a status change.
Claims20
In a telecommunications system, a method comprising the steps of:
- changing of a first telephone from a first state to a second state, wherein the first telephone is connected to a first LAN;
- in response to the changing step, sending a status change message to a second telephone via a WAN, wherein the second telephone is connected to a second LAN separate from the first LAN, wherein the first and second LANs are coupled to each other by the WAN, wherein the status change message contains information identifying the change of the first telephone from the first state to the second state;
- and
- in response to receipt of the status change message, updating a status indicator on the second telephone.
An IP telephone system comprising:
- a first IP telephone connected to a first IP server in a first local area network (“LAN”);
- a second IP telephone connected to a second IP server in a second LAN;
- a wide area network (“WAN”) coupling the first LAN to the second LAN;
- the first IP server having circuitry for sending a first status message to the second IP server via the WAN, the first status message containing information that the first IP telephone is in an off hook state;
- the second IP server having circuitry for sending a first signal to the second IP telephone in response to receipt of the first status message;
- and
- the second IP telephone having circuitry for illuminating a direct select key on the second IP telephone in response to receipt of the first signal from the second IP server, wherein the direct select key is dedicated to the first IP telephone.
Dependencies are inferred from the claim text.