Thick Stone or Brick Pubs

Old stone and solid brick walls can reduce the wireless range by up to 50% or more. Placing the receiver on the same side of the wall as the call point is best. Where rooms are connected by corridors, signal repeaters can be placed in these to amplify the signal.

Large Open Restaurant Floors

Large open Restaurant floors: Metal from chairs, mirrors and background wireless (2.4GHz) communication interfere with the signal. Move the receiver away from your router and mount it higher up on your wall to get a cleaner line of signal.

Kitchens With Steel Equipment

Stainless steel units absorb and also reflect radio signals, so in a steel pass or near a bank of fridges mounted on a wall a call button will find it difficult to get a signal. Receiving signal back through a serving hatch in a kitchen is much easier when the receiving end of the unit is fixed to a bracket on the kitchen side of the serving hatch, rather than at the far end of the kitchen on the floor.

Multi-Floor Care Homes

Concrete or solid floors between floors can prevent signals passing through floors. Therefore each floor would need a receiver placed there, or a repeater placed in the stairwell. Call Buttons is covered in more detail at https://www.dinggly.com/products/wireless-call-buttons/.

Testing before fixing will save much heartache.