electronic monitoring services for security purposes in the field of intrusion detection, fire detection, and carbon monoxide detection; monitoring services for security purposes, namely two-way voice communication; security guard services and security patrol services; monitoring telephone calls from subscribers and notifying emergency facilities; providing dedicated security phone lines and emergency monitoring services to commercial elevators; remote video monitoring of facilities; control of building environmental access and security systems, namely administration of magnetic encoded card readers, magnetic identifying cards via a global computer network and emergency call boxes