Posts tagged DTMF
Analog phone lines verses VOIP
Analog phone lines verses VOIP

A commercial cell for your elevator or fire alarm is the best current method since analog phones are going away.

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Commercial, Property Management, EngineersLarry LovePeak Alarmanalog, VOIP, AMSE, Elevator phones, Communication failure alert, Fire Alarm, POTS, POTS line, POTS Lines, 54 Volts, 18 volts, Kings iii, Elevator cellular unit, Fire Alarm cellular unit, IBC, ASME, DTMF, backup power, Fire Alarm code, Fire Marshal, AHJ, Larry Love, Peak Alarm, Peak Alarm CompanyComment