Signal

We are continuously battling with signal, with our phones LG G3, Samsung S6, IPhone6 and the ACER PC that is connected to the WIFI router is Always SEARCHING for signal. <br> <br> When making phone calls, these calls are connected, you see the time of the call that is connect for minutes on end, but there has been no actual connection and then suddenly the call is dropped and we get a messages call cancelled. I am being billed for those minutes but have not really used them.<br> <br> Or \call forward conditional is enabled is the message that appears and then suddenly you get "call ended\"" This is a daily ongoing issue"