• There is a risk that fraudulent telephone calls will be made if a third party discovers a personal identification
number (PIN) (verification code PIN or extension PIN) of the PBX.
The cost of such calls will be billed to the owner/renter of the PBX.
To protect the PBX from this kind of fraudulent use, we strongly recommend:
a. Keeping PINs secret.
b. Selecting complex, random PINs that cannot be easily guessed.
c. Changing PINs frequently.
16 PC Programming Manual Document Version 2016-03
1.1.1 For Your Safety
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