Chapter 4. Key Telephone Features Section 700 - Operationl If a ML or MC0 key is assigned line group number 9 and LCR has beenactivated, LCR is selected automatically.l Press the ML or MC0 key that flashes red to answer incoming calls.l If one group is set aside for data lines, this feature can be used when a lineis needed for operations such as data transmission via modem.Prime Line Preference(All Versions)DescriptionPrime Line Preference allows a user to place an outside call by simplypicking up the handset. When the user goes offhook, the trunk or trunk groupassigned to FFl is automatically accessed. (Be sure to program one of theother FF keys as an intercom key. jOperationI. Pick up the handset.l The phone issues outside dial tone.l The LED of the accessed line key lights green.l “CO TALK #XX” (where “XX” is the line number) appears on thedisplay.2. Dial the telephone number.The number appears on the display.Related Programmingl FFl (System): Least Cost Routing (LCR) Accessl FF2 (Trunks): Pooled Trunk Access for Group “9”l FF2 (Trunks): Pooled Trunk Access for Groups “8 l-86”l FF3 (Extension): Forced Least Cost Routingl FF5 (Keys): FF Key Assignmentl FF3 (Extension): Prime Line PickupTechnical Manuals Online! - http://www.tech-man.com