You're not aware of Tel-Tron's Warranty Plus program? For $3 per month per apartment, all of your Tel-Tron equipment is covered. If you take a lightning hit and every last piece of equipment is fried, you get all new equipment at no additional cost. A staff member dropped a pager in the toilet? Covered. A resident ran over a pendant with a car? Covered. A technician from a different company dropped a pipe on your console? Covered. Your electrical closet flooded and your power supply exploded? Covered.