2.13 [7] TRS722 PC Programming Manual2.13.2 [7-2] Exception CodeToll Restriction (TRS)/Call Barring (Barring) prohibits an extension from making certain trunk calls.Each time mode of every COS is assigned one of the seven TRS/Barring levels. TRS/Barring level 7provides the maximum restriction (all trunk calls are prohibited) and level 1 provides the minimum (alltrunk calls are allowed). TRS/Barring levels 2–6 are used to restrict calls according to the combinationof Denied Code Tables in 2.13.1 [7-1] Denied Code and Exception Code Tables here. A calldenied by the applicable Denied Code Tables is checked against the applicable Exception CodeTables, 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 atime. To display 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 eachlevel.Value RangeMax. 16 digits (consisting of 0–9, *, #, and X)Maintenance Console Location2.13.2 [7-2] Exception CodeProgramming Manual References2.8.11 [2-7-1] Class of Service—COS Settings—TRS—TRS Level—Day, Lunch, Break, Night2.13.1 [7-1] Denied CodeFeature Guide References1.9.1 Toll Restriction (TRS)/Call Barring (Barring)