3-48 FeaturesP 3 Features+Preferred Line Assignment — IncomingA proprietary telephone user can select the method to answer incoming outside calls fromthe following 3 line preferences. System Programming and Proprietary Telephone Settingsare required.No Line Preference: When an incoming call is received, the extension user must gooff-hook and then press the flashing CO button.Prime Line Preference: When incoming calls are received at the same time, the usercan receive the call on the preferred outside (CO) line by onlygoing off-hook.Ringing Line Preference: When an incoming call is received, the user can receive thecall ringing at their telephone by going off-hook.• A single line telephone can only set “Ringing Line Preference”.• Line access button(s) (Single-CO, Other-CO or Group-CO) should be assigned to CObutton(s) beforehand.• Required System Programming[408]–[410] Flexible Ringing Assignment — Day/Night/Lunch[411]–[413] Delayed Ringing Assignment — Day/Night/Lunch• Related Feature ReferenceLine Access Buttons• Operating Instructions References1.2 Proprietary Telephone Settings, “Customizing Your Telephone Functions”,Preferred Line Assignment — Incoming1.2 Proprietary Telephone Settings, “Customizing the Buttons on Your Telephone”,Line Access Buttons+!!Power Failure TransferDuring a power failure, specific extension telephones are automatically connected to specificoutside (CO) lines. This provides outside (CO) line conversations between the followingextensions and outside (CO) lines.Outside (CO) line 1 : extension jack 01Outside (CO) line 4 : extension jack 09A single line telephone (SLT) can work in case of a power failure. Connect an SLT to theabove extension jack. For more information, refer to the Operating Instructions.• All other conversations, except the above combinations, are disconnected during a powerfailure.• Only an outside (CO) line can have a conversation. All other features do not work.• We recommend connecting a single line telephone (SLT) in parallel at extension jacks 01and 09, so that an SLT can be used during a power failure.• Connection Reference2.19 Auxiliary Connection for Power Failure Transfer• Related Feature ReferenceParalleled Telephone Connection• Operating Instructions Reference1.7 Useful Features, “Power Failure Transfer”!!
