Radio Shack 43-142 - Manual (Page 76)

Beyond the Basics
Troubleshooting
Changing the Digital Security Code
The digital security code is an identification code used to connect
the handset and the base. Your unit ships from the manufacturer
with a preset security code. Resetting this code is not normally
necessary. In the rare situation that you suspect another
cordless telephone is using the same security code or if you are
instructed to change this code by a manufacturer’s Call Center
Representative, you can change the code by:
Perform “Resetting the Handset” for all of your handsets by
following the steps on page 32.
Re-register each handset by placing in the base charging
cradle. 1.
2.