flashing icon on one handset?

Mines a Freestyle 650 and the lollypop as you call it is the range /airial sygnal.

When you got your unit you would have had to program each handset to each base
Base 1 being the main base station that is plugged in to the telephone socket. The other two pick up calls transmitted by the base station up to a certain distance from the base station and don't need a telephone socket, as you are aware, only a charge point.
Base 2 would be any of the other two base/charge units. So base 1 should be on base station.
Base 2 should be kept on base 2
Base 3 on base 3.
Mix them and the lolllypop will flash.

The lollypop flashing may be because you have placed it on one of the other base units so place back on the main station base unit.
Or
Or if using at a substantioal distance from main base station its the out of range of the base station range and you lose the call.
It may need re-programing if it occurs when on main base station IF it says base 1 on display.
www.Bt.com may tell you go to support then contact us. fil in the online form.

Bob
September 2010