Newer technologies using wireless call systems are now available. WNCS add the added benefit of mobile devices such as pendants or the ability to connect bed or chair alarms and have the ability to have the alarms work in covered areas of the building or grounds. The term covered areas of the building is used because back of the store areas generally do not need coverage unless a facility is concerned about security. Some facilities are campuses on large acres of land so they may only choose to have coverage on outdoor patios, gardens or walking trails. WNCS are easily scalable to suit the small building to the large campus, use a network of antenna devices that send the signal back to the head end equipment, usually have the benefit of being supervised, which means the facility is alerted if any of the devices fails. They will also usually have battery backups for devices that are plugged in so they can still operate if the power fails, also let a facility add devices at any time. In addition the devices can be easily moved in case the furniture is moved in a room.
Today, mid-range wireless systems require staff members to physically go to the device and reset the emergency call device. This ensures staff does not reset an alarm remotely without checking on a resident.