Exception Code TablesException Code Tables are preprogrammed lists of leading digits or complete telephone numbers which arechecked against every dialed number prohibited by a Denied Code Table. When a user dials a numberprohibited by a Denied Code Table, it is compared to at least one Exception Code Table. If the dialed numbermatches an entry found in the applicable Exception Code Table, the call is permitted.There are five Exception Code Tables. Each table applies to a corresponding TRS level as well as the level(s)preceding it, as explained below.TRS Override by System Speed DialingWhen TRS Override by System Speed Dialing is enabled for the PBX, each COS has an additional TRS levelapplicable only to calls made using System Speed Dialing.® 4.12 [2-7-1] Class of Service—COS Settings—TRS— TRS Level for System Speed Dialing® [300] TRS Override by System Speed DialingThis allows extension users to use System Speed Dialing to make CO line calls which are normally prohibitedby the TRS level of their assigned COS. If, for example, a user’s TRS level is 7, that user normally cannotmake any CO line calls. However, if the same user’s TRS level for System Speed Dialing is level 1, the usercan make a CO line call to any number stored in System Speed Dialing.TRS LevelThe TRS level is determined by the telephone codes set in the Denied Code Tables and Exception CodeTables.As shown in the table below, 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.Denied Code Tables*1 Exception Code Tables*2Level 1 Not Programmable Not ProgrammableLevel 2 Table for Level 2 Tables for Levels 2 through 6Level 3 Tables for Levels 2 and 3 Tables for Levels 3 through 6Level 4 Tables for Levels 2 through 4 Tables for Levels 4 through 6Level 5 Tables for Levels 2 through 5 Tables for Levels 5 and 6Level 6 Tables for Levels 2 through 6 Table for Level 6Level 7 Not Programmable Not Programmable*1 ® 9.1 [7-1] Denied Code— Denied Code Tables—Level 2–Level 6® [301] TRS Denied Code*2 ® 9.2 [7-2] Exception Code— Exception Code Tables—Level 2–Level 6® [302] TRS Exception Code[Usage Example] Using this method, certain outgoing CO line calls (e.g., international/cellular phone/longdistance) can be restricted as in the example below:Restricted AllowedLevel 1 No restrictionLevel 2(Boss)• International Calls • Countries where Clients areLocated• Cellular Phone Calls• Long Distance Calls• Local Calls328 Feature Manual Document Version 2009-1217.1.6 TRS (Toll Restriction)
