Viscount Systems Inc. announces the EmerPhone 500 series of emergency telephones. The EM500 is a battery-operated, stand-alone system that transmits wireless voice via cellular networks. The EM500 was designed in response to demand for vandal-resistant systems that could be installed in remote locations with no economical access to telephone lines or power. The EM500 enclosure also can be used to house standard 12VAC and telephone-line powered units. Viscount Systems Inc.

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