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BUSY LAMP FIELD SYSTEM FOR REMOTE TELEPHONES AND METHOD FOR THE SAME

  • US 20120148039A1
  • Filed: 12/08/2010
  • Published: 06/14/2012
  • Est. Priority Date: 12/08/2010
  • Status: Active Grant
First Claim
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1. A busy lamp field system for remote telephones, comprising:

  • a plurality of switchboard systems, each switchboard system comprising;

    a private branch exchange (PBX) connected to the internet; and

    at least a telephone connected to the private branch exchange, the telephone housing having at least a busy lamp field (BLF) key set to associate with corresponding phone number of a remote telephone, wherein the remote telephone is a telephone of another switchboard system;

    an extensible markup language (XML) server connected to each switchboard system via the internet and having an up-to-time table used for storing phone status of each telephone in each switchboard system;

    wherein each telephone is connected to the XML server via the internet and periodically uploads to and stores local phone status in the up-to-time table, and each telephone retrieves the phone status of the remote telephone corresponding to the BLF key from the up-to-time table and displays the phone status via the BLF key.

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