Toll Restriction (TRS) prohibits an extension from making certain CO line calls. Each time mode of every COS is assigned one of the seven TRS levels. TRS level 7 provides the maximum restriction (all CO line calls are prohibited) and level 1 provides the minimum (all CO line calls are allowed). TRS levels 2–6 are used to restrict calls according to the combination of Denied Code Tables here and Exception Code Tables in 2.13.2 [7-2] Exception Code. If the leading digits of the dialed number are not found in the applicable Denied Code Tables, the call is made. A maximum of 100 denied codes can be programmed for each level. 20 codes are displayed at a time. To display other sets of codes, click the applicable tab.
Denied Code Tables—Level 2–Level 6
Specifies the leading digits of toll restricted numbers for each level.
Toll Restriction (TRS) prohibits an extension from making certain CO line calls. Each time mode of every COS is assigned one of the seven TRS levels. TRS level 7 provides the maximum restriction (all CO line calls are prohibited) and level 1 provides the minimum (all CO line calls are allowed). TRS levels 2–6 are used to restrict calls according to the combination of Denied Code Tables in 2.13.1 [7-1] Denied Code and Exception Code Tables here. A call denied by the applicable Denied Code Tables is checked against the applicable Exception Code Tables, and if a match is found, the call is made. A maximum of 100 exception codes can be programmed for each level. 20 codes are displayed at a time. To display other sets of codes, click the applicable tab.
Exception Code Tables—Level 2–Level 6
Specifies the leading digits of the numbers to be exempted from Toll Restriction for each level.
If the PBX has access to multiple telephone companies, a Special Carrier Access Code is required each time a CO line call is made. By programming these Special Carrier Access Codes here, Toll Restriction (TRS) can restrict or allow calls to be made by ignoring the codes and looking at the telephone number only. If a Special Carrier Access Code is found in the dialed number, TRS will look only at the following digits. A maximum of 20 Special Carrier Access Codes can be programmed.
Special Carrier Access Code
Specifies a Special Carrier Access Code. Special Carrier Access Codes and Host PBX Access codes should be unique.
Any extension user can dial the programmed emergency numbers at any time after seizing a CO line. The restrictions imposed on the extension, such as Toll Restriction (TRS), Account Code—Forced mode, and Extension Dial Lock are disregarded. A maximum of 10 emergency numbers can be programmed.
Emergency Number
Specifies the numbers used for making emergency calls. It is not necessary to start the emergency number with a CO Line Access number.
Default
1: 911, 2–10: Not stored.
Value Range
Max. 32 digits (consisting of 0–9, *, #, T [Transfer], P [Pause], and F [Flash])
Toll Restriction (TRS) prohibits an extension from making certain CO line calls. The following optional settings can be programmed to activate a TRS check, override TRS, or switch between TRS methods.
TRS Override by System Speed Dialing
Enables an outgoing CO line call to override TRS when the call is made using System Speed Dialing.
Enables a TRS check for the user-dialed "" and "#". This is useful in preventing unauthorized calls which could possibly be made through certain telephone company exchanges.
Dial Digits Limitation After Answering—Dial Digits
Specifies a limit to be placed on the number of digits which can be dialed after an extension user receives a CO line call. If the number of dialed digits exceeds the programmed limit, the line will be disconnected.
Selects the method of TRS/Barring to be used for restricting calls. The level of TRS/Barring is determined by the telephone codes set in the Denied Code Tables and Exception Code Tables.
Default
Deny Table 2_N + Except Table N_6
Value Range
Deny Table 2_N + Except Table N_6: The Denied Code Tables for the higher levels are applied to all levels below it, and the Exception Code Tables for the lower levels are applied to all levels above it. Deny Table N + Except Table N: Each level has its own separate set of denied codes and exception codes, which are only applied to that level.
Denied Code Tables—Level 2–Level 6
" and "#". This is useful in preventing unauthorized calls which could possibly be made through certain telephone company exchanges.