Panasonic KX-TDA30 Features Manual page 110

1.8 Toll Restriction (TRS)/Call Barring (Barring) Features
KEEP THE SOFTWARE UP-TO-DATE WITH THE LATEST DATA.
• A COS should be assigned for each extension. (→ Class of Service [602])
• TRS/Barring checks are applied to the following:
– ARS
– Trunk Access (Idle Line/Trunk Group/S-CO Line)
• It is programmable whether " " or "#" is checked by the TRS/Barring. This is useful in preventing
unauthorised calls which could be possible through certain telephone company exchanges.
• It is programmable whether TRS/Barring checks the digits dialled after the External Feature Access
during a trunk call. (→ 1.10.7 External Feature Access (EFA))
• Host PBX Access Code/Special Carrier Access Code
TRS/Barring checks for numbers dialled with a Host PBX Access code (→ 1.5.4.8 Host PBX Access
Code (Access Code to the Telephone Company from a Host PBX)) or a Special Carrier Access code
(→ 1.5.4.9 Special Carrier Access Code) in the following cases:
Host PBX Access Code
Special Carrier Access
Code
• ARS
If ARS is applied to a dialled number, TRS/Barring will check the user-dialled number (not the modified
number by ARS). In this case, a Host PBX Access code and/or a Special Carrier Access code will not
be checked.
• Dialling Digit Restriction during Conversation
The dialling of digits can be restricted while engaged on a received trunk call. If the number of dialled
digits exceeds the preprogrammed limitation, the line will be disconnected.
• It is possible to select through system programming whether the trunk is disconnected when the Inter-
digit time expires without the TRS/Barring check being completed.
– If no disconnection is chosen, the TRS/Barring check will also be performed after the Inter-digit
time expires.
– If disconnection is chosen, the line will be disconnected when the trunk Inter-digit time expires. This
also prevents EFA from being used.
This setting applies to all trunks.
• A TRS/Barring level can be changed by some features. The priority of features, when multiple features
are used, is as follows:
1)
Dial Tone Transfer (→ 1.8.4 Dial Tone Transfer)
2)
Budget Management (→ 1.8.2 Budget Management)
3)
TRS/Barring Override by System Speed Dialling
4)
Walking COS/Verified Code Entry
(→ 1.8.5 Walking COS, 1.8.6 Verified Code Entry)
5)
Extension Lock
110 Feature Guide
Type
Deletes the code. A
TRS/Barring check is
carried out on the
following digits.
Deletes the code. A
TRS/Barring check is
carried out on the
following digits.
Stored
Found
The call is made
(excepted from TRS/
Barring).
TRS/Barring checks
the whole number.
Not found
TRS/Barring checks
the whole number.
TRS/Barring checks
the whole number.
Not stored