Panasonic KX- TAW848, Features Manual

Page: 72 / 584

1.8 Toll Restriction (TRS) Features
72 Feature Guide
Failure to upgrade the on-premise PBXs or peripheral equipment to recognize the new codes as they
are established will restrict the customer and users of the PBX from gaining access to the network
and to these codes.
KEEP THE SOFTWARE UP TO DATE WITH THE LATEST DATA.
• TRS checks are performed for all calls made by:
– Any CO line access (Idle Line Access, CO Line Group Access, S-CO Line Access)
– Automatic Route Selection (ARS)
• The PBX can also be programmed to perform a TRS check for numbers that contain non-digits ( or
#). By default, the PBX ignores ("No Check") any non-digits that are dialed, which is useful in preventing
unauthorized calls which could possibly be made using certain telephone company exchanges.
• TRS can also be programmed to check digits that are dialed after External Feature Access, such as
when trying to transfer a call to an outside party. (
→
1.10.6 External Feature Access (EFA))
• Host PBX Access Code/Special Carrier Access Code
TRS checks can be carried out on telephone numbers dialed using a Host PBX Access code (
→
1.5.4.6
Host PBX Access Code (Access Code to the Telephone Company from a Host PBX)) or Special Carrier
Access code (
→
1.5.4.7 Special Carrier Access Code).
• ARS
If ARS is applied to a dialed number, TRS will check the user-dialed number, not the modified number
produced by ARS. You do not need to program ARS-modified numbers in any of the TRS Tables.
Additionally, when using ARS, TRS will ignore the Host PBX Access code or Special Carrier Access
code.
• Dialing Digit Restriction during Conversation
TRS can also limit the number of digits which may be dialed by an extension user while the user is
engaged on a received CO line call. If the number of dialed digits exceeds the limit, the line will be
disconnected.
• It is possible to select through system programming whether the CO line is disconnected when the
Inter-digit time expires without the TRS check being completed.
– If no disconnection is chosen, the TRS check will also be performed after the Inter-digit time
expires.
– If disconnection is chosen, the line will be disconnected when the CO line Inter-digit time expires.
This also prevents EFA from being used.
This setting applies to all CO lines.
• When one of the following features is used, the TRS level of the extension can be temporarily changed.
If two or more of these features are used simultaneously (Dial Tone Transfer is used while the extension
is locked, for example), the TRS level of the feature with the highest priority is applied for the duration
of the call. The numbers below (1 through 4) indicate the priority of each feature, with 1 having the
highest priority, and 4 having the lowest.
Access Code Type
Access Code is stored in the PBX
Access Code is not
stored in the PBX
Access Code is dialed
Access Code is not
dialed
Host PBX Access
Code TRS ignores the code
and checks the
remaining digits. Number dialed is not a
CO line call, so TRS
does not check the
number. TRS checks the entire
number.
Special Carrier
Access Code TRS ignores the code
and checks the
remaining digits. TRS checks the entire
number. TRS checks the entire
number.