9.2 [7-2] Exception CodeToll Restriction (TRS)/Call Barring (Barring) prohibits an extension from making certain trunk calls. Each timemode of every COS is assigned one of the seven TRS/Barring levels. TRS/Barring level 7 provides themaximum restriction (all trunk calls are prohibited) and level 1 provides the minimum (all trunk calls areallowed). TRS/Barring levels 2–6 are used to restrict calls according to the combination of Denied CodeTables in 9.1 [7-1] Denied Code and Exception Code Tables here. A call denied by the applicable DeniedCode Tables is checked against the applicable Exception Code Tables, and if a match is found, the call ismade.A maximum of 100 exception codes can be programmed for each level. 20 codes are displayed at a time. Todisplay other sets of codes, click the applicable tab.Exception Code Tables—Level 2–Level 6Specifies the leading digits of the numbers to be exempted from toll restriction/call barring for each level.Value RangeMax. 16 digits (consisting of 0-9, *, #, and X)Maintenance Console Location9.2 [7-2] Exception CodeProgramming Manual References4.12 [2-7-1] Class of Service—COS Settings—TRS— TRS Level—Day, Lunch, Break, Night9.1 [7-1] Denied CodeFeature Guide References1.9.1 Toll Restriction (TRS)/Call Barring (Barring)PC Programming Manual 8419.2 [7-2] Exception Code
