7.5 TRS
7.5.1 Class of Service (COS) [5-1]
| Each extension has a certain class of service (COS) assigned to it. The Toll Restriction (TRS) feature can be programmed to behave differently depending on each COS. A maximum of 5 COSs can be programmed. |
Jack
| Indicates the jack number (reference only). |
Value Range
Extension
| Indicates the extension number and name (reference only). |
Value Range
Day, Night, Lunch
| Selects the TRS class applied to outside (CO) line calls in each time service mode. |
Value Range
7.5.2 Denied Codes [5-2]
Toll Restriction (TRS) can prohibit certain extension users from making unauthorised outside (CO) line calls. Every extension is assigned to one of 5 classes of service (COSs) for each time service mode. COS 1 does not restrict calls (all outside (CO) line calls are allowed). COSs 2–5 are used to restrict calls according to the combination of Denied Code tables here and Exception Code tables in 7.5.3 Exception Codes [5-3].
If a dialled number is not found in the applicable Denied Code tables, the call is made. A total maximum of 80 denied codes can be programmed. |
No.
| Indicates the denied code number (reference only). |
Value Range
Class 2–5
| Specifies the toll restricted numbers for classes 2–5. |
Value Range
Max. 11 digits (consisting of 0-9,  , #, and x [wild card]) |
7.5.3 Exception Codes [5-3]
Toll Restriction (TRS) can prohibit certain extension users from making unauthorised outside (CO) line calls. Every extension is assigned to one of 5 classes of Service (COSs) for each time service mode. COS 1 does not restrict calls (all outside (CO) line calls are allowed). COSs 2–5 are used to restrict calls according to the combination of Denied Code tables in 7.5.2 Denied Codes [5-2] 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 80 exception codes can be programmed. The available number of codes depends on the COS assigned to each extension. |
No.
| Indicates the exception code number (reference only). |
Value Range
| 01–80 |
| 01–20: Classes 2–5 |
| 21–40: Classes 2–4 |
| 41–60: Classes 2–3 |
| 61–80: Class 2 |
Classes 2–5, Classes 2–4, Classes 2–3, Class 2
| Specifies the numbers to be exempted from TRS in each class range. |
Value Range
| Max. 11 digits (consisting of 0–9, , #, and x [wild card]) |
7.5.4 Emergency Number & Others [5-4]
Any extension user can dial the programmed emergency numbers at any time after seizing an outside (CO) line. Any restrictions imposed on the extension, such as Toll Restriction (TRS), Account Code—Forced/Verify-All/Verify-Toll mode, and Extension Lock, are disregarded.
A maximum of 5 emergency numbers can be programmed.
Other optional TRS settings can be programmed. |
Emergency Number
| Specifies the numbers used for making emergency calls. It is not necessary to prefix the emergency number with an Outside (CO) Line Access number. |
Value Range
| Max. 24 digits (consisting of 0–9) |
System Speed Dialling Class
| Selects the class of service (COS) of System Speed Dialling numbers. Calls made using System Speed Dialling are restricted depending on the COS programmed here and the COS assigned to each extension. |
Value Range
Extension Lock Class
| Selects the COS of locked extensions. |
Value Range
TRS Check for dial "*#"
| Enables TRS to check for the user-dialled digits "" and "#". This is useful in preventing some unauthorised calls. |
Value Range
| On (checked), Off (unchecked) |
TRS Check after Answering
| Specifies whether the PBX checks DTMF (Dual Tone Multi-Frequency) signals when answering calls or not. If enabled, the length of time that the DTMF signal is checked can be specified. |
Value Range
On (checked), Off (unchecked)
check time: 5 s, 10 s, 15 s, 20 s, 30 s, 60 s |