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Priority based methods and apparatus for transmitting accurate emergency location identification numbers (ELINs) from behind a multi-line telephone system (MLTS)

  • US 6,868,139 B2
  • Filed: 05/30/2003
  • Issued: 03/15/2005
  • Est. Priority Date: 03/23/2001
  • Status: Expired due to Term
First Claim
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1. A method for processing an emergency call made from behind a PBX/MLTS, said method comprising the steps of:

  • a) within the PBX/MLTS determining whether dialed digits represent an emergency number; and

    b) assigning priority within the PBX/MLTS to a call determined to be an emergency call without interrupting any existing calls and sending the emergency call to a central office.

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