The invention allows utilizing Caller Line Identification (CLI) feature in receiving test emergency calls from any kind of elevator emergency telephones. A call attempt including CLI information from an elevator emergency telephone is received at an elevator emergency call receiver unit. The CLI information is detected. Then, one of the following is performed: 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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    Titel :

    Processing test calls from elevator emergency telephones


    Beteiligte:
    HUOTARI TOMMI (Autor:in)

    Erscheinungsdatum :

    2018-11-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H04M TELEPHONIC COMMUNICATION , Fernsprechverkehr / B66B Aufzüge , ELEVATORS / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme



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