1.18 Proprietary Telephone (PT) Features218 Feature Guide1.18.2 Flexible ButtonsDescriptionFlexible buttons are customised by either system or personal programming. The following types of flexiblebuttons are provided on PTs, DSS Consoles, Add-on Key Modules, and/or PSs:a) Flexible CO buttonsb) Flexible Direct Station Selection (DSS) buttonsc) Programmable Feature (PF) buttons[Button Usage]Button UsageSingle-CO (S-CO) Used to access a specified trunk for making or receiving calls.Group-CO (G-CO) Used to access an idle trunk in a specified trunk group for making calls.Incoming calls from trunks in the assigned trunk group arrive at thisbutton.Loop-CO (L-CO) Used to access an idle trunk for making calls. Incoming calls from anytrunk arrive at this button.Direct Station Selection (DSS) Used to access an extension with one touch.Network Direct StationSelection (NDSS)Used to access an extension at another PBX within the same network.One-touch Dialling Used to access a preprogrammed party or feature with one touch.Incoming Call Distribution (ICD)GroupUsed to access a specified incoming call distribution group for makingor receiving calls.Message Used to leave a message waiting indication or call back the party wholeft the message waiting indication.FWD/DND (External/Internal/Both) *Used to perform the FWD or DND feature for the extension. Thefeature is applied to trunk calls, intercom calls, or both.Group FWD (External/Internal/Both)Used to perform the FWD feature for a specified incoming calldistribution group. The feature is applied to trunk calls, intercom calls,or both.Account Code Entry (Account) Used to enter an account code.Conference Used to establish a multiparty conversation.Terminate Used to disconnect the current call and make another call withouthanging up.External Feature Access (EFA) Used to send a flash/recall signal to the telephone company or hostPBX to access their features.Charge Reference Used to check the total call charge for your own extension.Call Park Used to park or retrieve a call in a preset PBX parking zone.Call Park (Automatic Park Zone) Used to park a call in an idle PBX parking zone automatically.Call Log Used to show the incoming call information.
