Tunstall Lifeline Digital User Manual page 9

The LED indicators start chaser sequence and the button LEDs flash in unison to
indicate that the programming mode is enabled.
3. Press and hold the yellow Extra button (1).
4. When the device announces "Four", release the button.
The device announces the current signal strength:
– "Cellular signal strength is One" for poor cellular signal strength.
– "Cellular signal strength is Two".
– "Cellular signal strength is Three".
– "Cellular signal strength is Four".
– "Cellular signal strength is Five" for excellent cellular signal strength.
5. If necessary, adjust the position of the device to optimize cellular signal strength. If
no suitable location can be found contact Tunstall for assistance.
6. Press the green Cancel button (3) to end the test and exit. The test automatically
ends after 2 minutes.