PIL Reference2.5 PBX Configuration—[4] TRS/ARS—Leading digits2.5 PBX Configuration—[4] TRS/ARS—Account code2.5 PBX Configuration—[4] TRS/ARS—Options3.4.2 Walking COS (TRS level)DescriptionA user can enter his extension number and extension personal identification number (PIN) at anotherextension, to make the call using his TRS level. (Refer to 3.4.1 Toll Restriction (TRS))OperationDial the Walking COS feature number, enter an extension number and PIN, and then seize a trunk to call.(Refer to 2.1.1 Feature Number Lists for User)ConditionsConditions NoteThere is a risk that fraudulent telephone calls will be made if a thirdparty discovers a personal identification number (PIN) (account codeor extension PIN) of the PBX.The cost of such calls will be billed to the owner/renter of the PBX.To protect the PBX from this kind of fraudulent use, we stronglyrecommend:a. Keeping PINs secret.b. Selecting complex, random PINs that cannot be easilyguessed.c. Changing PINs regularly.Refer to 3.4.5 Extension DialLockIt is possible to set the applicability of this feature for each extension.When set as not applicable, a call is disconnected even if usingWalking COS.It is possible to set the applicability regarding the Walking COSoperation through DISA for each extension.An extension user can use Quick Dial/System Speed Dial, evenwhen making a trunk call using Walking COS.Refer to 3.3 Memory DialingFeaturesIf an Extension PIN is not set, an extension user cannot use WalkingCOS.PIL Reference2.3.1 PBX Configuration—[2-1] Extension—Port2.3.2 PBX Configuration—[2-2] Extension—Phone3.4.2 Walking COS (TRS level)46 Feature Manual