Avaya D100 Installation And Administration Manual page 33

Overview
5. Verify whether the circle encompasses all of the areas that will use a handset. If the
circle does not encompass all of the areas, you must modify the floor plan to
accommodate another base station or a repeater.
The following image demonstrates a modified floor plan that accommodates a
repeater. Note that some areas still do not receive full coverage.
D100 SIP Wireless Terminal Installation and Administration Guide December 2012 33