Repairs and installs: telephone systems, handsets, alarm/fire systems, metal detectors, x-ray machines, sound systems, card access, duress systems, magnetic and electric locks, closed circuit television systems, intercoms, and repairs of general office equipment. Scheduling of testing, and/or inspections of life/safety/health systems, i.e. fire extinguishers, fire sprinkler/suppression, burglar alarms, trouble alarms.