This video describes the troubleshooting steps necessary for me to figure out how to use a Patton M-ATA FXS device to integrate with Avaya IP Office R11 to provide dialtone to an Otis elevator allowing bidirectional DTMF over the SIP connection.
Негізгі бет Ғылым және технология Avaya IP Office / Patton M-ATA / Otis elevator phone
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