What is a no monthly fee medical alert system?

A medical alert system with no monthly fee is typically a system that has a wireless pendant that can be worn around the neck. Once a button on the pendant is pressed it sends a radio frequency signal to a dialer. The dialer is connected to a telephone line. Once the dialer receives the signal it will begin dialing preprogrammed numbers. These numbers are usually to people that can be trusted to get help when the pendant is pressed. The system should also be able to call 911 directly if needed. The reason a system like this has no monthly fee is because it calls numbers directly and does not call a monitoring service that can charge up to $49 a month for service.