BT Redcare Secure Mk3, Installation, Maintenance And Operation Manual, Page: 45 / 56

Page 44
Roaming SIMs
The unit will auto detect the sim type that is present in the unit. Most units are supplied pre fitted with a Roaming Sim.
Where a Roaming Sim is fitted then the unit will switch between Wireless networks to maintain connectivity should
connectivity be lost on the current network.
The unit will search the available networks for a signal stronger than the “Roaming CSQ limit” at unit start up.
(Default 19)
Should the unit lose connectivity with the BT Redcare platforms, or lose registration with the current base station, then
the unit will roam onto the next available Wireless network.