1) Enter Installer Code on the panel while disarmed (Default 4112) + 800
2) You Will now see 20 INSTALLER CODE if that was the correct installer code.
3) Press *47 to begin changing Phone System Select
4) Press *99 After the screen updates to the next field to exit programming
Note: GeoArm can change the installer code upon activation
This option is used to enter the correct type of phone dialing (pulse or tone), and to
select the correct WATS line option for the Central Station. This option is used to
activate the Speaker Phone option. For the LynxSIA Plus it is also used to disable call
waiting.
Note: If using pulse dialing, you must enter the numbers slowly in order to allow the pulse
dialer time to operate.
Follow Install manual for more information: