C 3 Features3-50 FeaturesClass of Service (COS)Description COS is used to define the features which are allowed for a group ofextensions. Each extension is assigned a COS number. EightClasses of Service are available.Conditions • The programmable items are shown below:(1) Outgoing call restriction level (Day mode / Night mode) – 1through 8(2) Restriction of outside call duration(3) Transfers a call to an outside party(4) Forwards a call to an outside party(5) Executive Busy Override(6) Executive Busy Override Deny(7) Overrides Do Not Disturb of the called extension(8) Account Code Entry operation – verified - all calls / verified -toll restriction override / option(9) Off-Hook Call Announcement (OHCA)(10) The number of permitted dialing digits during an outside call(11) Call Forwarding – Follow Me• The extension user can use all of the COS functions of their ownextension at another extension by entering a working COS password(Walking COS).Programming ReferencesSection 4, System Programming[500]–[501] Toll Restriction Level — Day / Night[502] Extension-to-Outside Line Call Duration Limit[503] Call Transfer to Outside Line[504] Call Forwarding to Outside Line[505] Executive Busy Override[506] Executive Busy Override Deny[507] Do Not Disturb Override[508] Account Code Entry Mode[509] Off-Hook Call Announcement (OHCA)[601] Class of Service[991] COS Additional InformationFeature References Section 3, FeaturesWalking COSOperation References Not applicable.
