UNDERGROUND COMMUNICATION SYSTEM COMPRISED OF TELEMAGNETIC TRANSMITTERS, ELECTROMAGNETIC TRANSMITTERS, ANTENNAS AND RECEIVERS; ANTENNAS FOR GENERATING LOW FREQUENCY ELECTROMAGNETIC FIELDS; TELEMAGNETIC TRANSMITTERS AND ELECTROMAGNETIC TRANSMITTERS; RECEIVERS; COMPUTER SOFTWARE TO MONITOR, ACQUIRE AND/OR CONTROL DATA IN A COMMUNICATION SYSTEM

telecommunications services, namely outcall notification services

telecommunications services

EMERGENCY COMMUNICATION AND FIRE ALARM SYSTEM-NAMELY, MICROPHONE, AUDIO AMPLIFIER, LOUD SPEAKER, PLUG-IN PANEL, CENTRAL CONTROL PANEL, AND CONTROL BOX HOUSING