1.8 Toll Restriction (TRS)/Call Barring (Barring) Features124 Feature Guide1.8.6 Verification Code EntryDescriptionAn extension user can enter a verification code when calling from his own or any other extension, to changethe TRS/Barring level (→ 1.8.1 Toll Restriction (TRS)/Call Barring (Barring)) or to identify the call foraccounting and billing purposes. A verification code personal identification number (PIN) is required to usethis feature.ConditionsWARNINGThere is a risk that fraudulent telephone calls will be made if a third party discovers a personalidentification 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 regularly.• When a trunk call is made using Verification Code Entry:– the Class of Service of the specified extension is applied (→ 2.2.1 Class of Service (COS))– the budget of the specified extension is applied (→ 1.8.2 Budget Management)– the Itemised Billing code of the specified extension is applied (→ 1.9.1 Automatic Route Selection(ARS))– + verification code is recorded on SMDR as the call originator, instead of the extension numberof the actual extension used (→ 1.25.1 Station Message Detail Recording (SMDR)).• Verification Code Entry through DISAThis feature is also available through DISA. (→ 1.16.6 Direct Inward System Access (DISA))• Verification Code PINA verification code PIN must be assigned for each verification code through system programming orthrough manager programming.• Verification Code PIN LockIf the wrong PIN is entered three times, the line will be disconnected. If the wrong PIN is entered apreprogrammed number of times successively, the PIN for the verification code will be locked. Only anextension assigned as the manager can unlock it. In this case, the PIN will be unlocked and cleared.
