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| Number | Title | Issue Date |
| 7321944 | User programming system using web server for private branch exchange A user programming system using a web server for a PBX is provided. A user program is loaded in the web server via a LAN interface. When necessary, a client accesses the web server by a general web browser and updates the user program on line or off line. ... | 01/22/2008 |
| 7218716 | Apparatus and method for switching incoming calls through to subscribers of a telecommunications network A switchboard apparatus and method for a telecommunications system, for switching incoming calls through to subscribers, with an input device for entering connection data of a required subscriber, a condition device for determining the telephone condition of the req... | 05/15/2007 |
| 7116775 | Apparatus and method for managing BLF information in an inter-networking system An apparatus and corresponding method for managing busy lamp field (hereinafter, referred to as BLF) information in an inter-networking system are provided which are capable of collecting and managing BLF information of every PBX in a BLF information repeater added ... | 10/03/2006 |
| 6810430 | Network communications coupler A coupler for connecting a first communications network to a second communications network. The coupler implements its functionality in software. ... | 10/26/2004 |
| 6052461 | Method and apparatus for maintaining real-time busy status information of telephone extensions in a private branch exchange A method and apparatus for maintaining real-time busy status information for a plurality of telephone extensions connected to a Private Branch Exchange (PBX). The invention includes a database for storing busy status information obtained by a server from ... | 04/18/2000 |
| 4792969 | Line condition data collecting system for a telephone exchange A line condition data collecting system for a telephone exchange includes an image memory in a central processing unit which stores line condition data to reduce the amount of time the central controller in the central processing unit waits for the line c... | 12/20/1988 |
| 4049922 | Switching arrangement for telecommunication switching systems A telecommunication switching arrangement is described wherein those switching elements that are idle are marked at a given test point with a free or idle potential, and those which are currently in use, or busy, are marked by an absence of the foregoing ... | 09/20/1977 |
| 4041245 | Switching arrangement for telecommunication switching systems A telecommunication switching arrangement is described wherein each seizable switching component, i.e., a component in an idle condition, is so marked by application of an idle potential to a test point by means of a seizing circuit in that switching comp... | 08/09/1977 |
