To prevent unauthorized use of your line by neighboring cordless phones, the handset responds to signals from the bases, which are encoded with a security code 4,026 Combinations: SPP -121 More than 65,00 Combinations: SPP-M502, SPP - 206
A number used to prevent unauthorised or accidental alteration of data programmed into wireless phones The security code can be used by the owner of a phone to change the lock code