10.7 PBX Configuration—[2-7] System—Class of
Service
10.7.1 PBX Configuration—[2-7-1] System—Class of
Service—COS Settings
Each extension, doorphone port, incoming call distribution group, and trunk group is assigned a Class of
Service (COS). Certain features can be programmed to behave differently depending on the COS. A maximum
of 64 COS levels can be programmed.
TRS
Restrictions to features related to making trunk calls can be programmed for each COS.
COS Name
Specifies the name of the COS.
Value Range
Max. 20 characters
Maintenance Console Location
10.7.1 PBX Configuration—[2-7-1] System—Class of Service—COS Settings
Feature Guide References
5.1.1 Class of Service (COS)
TRS Level—Day, Lunch, Break, Night
Specifies the Toll Restriction (TRS)/Call Barring (Barring) level for making trunk calls in each time mode.
Value Range
1: Allows all trunk calls
2–6: Restricts trunk calls according to the combination of the Denied and Exception Code Tables
7: Restricts all trunk calls
Maintenance Console Location
10.7.1 PBX Configuration—[2-7-1] System—Class of Service—COS Settings
PC Programming Manual References
10.4 PBX Configuration—[2-4] System—Week Table
11.1.1 PBX Configuration—[3-1-1] Group—Trunk Group—TRG Settings—Main— COS
11.5.1 PBX Configuration—[3-5-1] Group—Incoming Call Distribution Group—Group Settings—Main—
COS
12.1.1 PBX Configuration—[4-1-1] Extension—Wired Extension—Extension Settings—Main— COS
PC Programming Manual 493
10.7.1 PBX Configuration—[2-7-1] System—Class of Service—COS Settings
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