Capabilities 51Programming hintsTo accommodate the device attached to the you may wantto lengthen or shorten the delay. If a modem or fax machine isattached to the you will want to keep the delay short. If a callto a fax machine or modem cannot be connected, try shorteningthe delay. If an individual is dialing the number for a fax machineor modem, you may want to make the delay a little longer.Line abilitiesLine abilities programming assigns dialing filters to lines.Line filterA Line filter is a collection of restrictions and exceptions definedin a Dialing filter, and applied to an outgoing line. A Line filter onan outgoing line may be used to limit the capabilities of that lineto carry calls made to specific area codes or destinations.Use the display button, and the dial pad to program theLine filter. Filter 03 is the default Line filter.Class of Service (COS) passwordsClass of Service (COS) passwords permit controlled access to asystem’s resources. Class of Service programming definespasswords, their associated dialing filters and user filters.A Class of Service can be associated with a telephone, a line ora COS password. It determines the dialing capabilities that applyto internal telephones and any lines used for external calls.Users have a Class of Service associated with their telephones,in the sense that there are dialing filters associated withtelephones, as well as line pool assignments. Use of a COSpassword affects only the telephone’s dialing capabilities.The ability to change the COS internally means that someoneusing another person’s telephone can temporarily change therestrictions that would normally be applied.PO842627 01 DR5.1 Owner’s Handbook