My house is prewired for a home monitoring system. I rent the house, but my landlord has continued to pay for the alarm system because she is under contract. I switched to FiOS last spring, but since then, the landlord has given me permission to use the home monitoring system. I noticed that the Verizon installer unplugged the box to the home monitoring system when he installed FiOS. When I try to simply plug the home monitoring system back into the electrical outlet, I get a loud beep that repeats every few seconds and the home monitoring keypad lights up "trouble". Am I able to use this system with the FiOS phone service, or will I need to go back to a regular landline to use my alarm system? Since my landlord is paying for this, I would certainly like to be able to use it and not incur any additional costs.