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PROCESSING TEST CALLS FROM ELEVATOR EMERGENCY TELEPHONES

  • US 20170019528A1
  • Filed: 09/09/2016
  • Published: 01/19/2017
  • Est. Priority Date: 03/28/2014
  • Status: Active Grant
First Claim
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1. A method of processing test calls from elevator emergency telephones, comprising:

  • receiving, at an elevator emergency call receiver unit, an incoming call attempt from an elevator emergency telephone, the call attempt including caller line identification, CLI, information;

    detecting the CLI information included in the received call attempt, and performing one of;

    a) disconnecting the call attempt to complete the test call processing;

    b) in response to detecting the call attempt being released by the elevator emergency telephone within a predetermined time period, determining that the test call processing is completed; and

    c) in response to detecting the call attempt not being released by the elevator emergency telephone within the predetermined time period, answering the incoming call to enable the elevator emergency telephone to continue the test call processing.

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