1.19 Proprietary Telephone (PT) Features174 Feature Guide1.19.2 Flexible ButtonsDescriptionFlexible buttons are customised by either system or personal programming. The followingtypes of flexible buttons are provided on PTs, DSS Consoles, Add-on Key Modules, and/orPSs: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 formaking calls. Incoming calls from trunks in the assigned trunkgroup arrive at this button.Loop-CO (L-CO) Used to access an idle trunk for making calls. Incoming callsfrom any trunk arrive at this button.Direct Station Selection(DSS)Used to access an extension with one-touch.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 groupfor making or receiving calls.Message Used to leave a message waiting indication or call back theparty who left the message waiting indication.FWD/DND (External/Internal/Both) *Used to perform the FWD or DND feature for the extension.The feature 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 callwithout hanging up.External Feature Access(EFA)Used to send a flash/recall signal to the telephone companyor host PBX 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 ParkZone)Used to park a call in an idle PBX parking zone automatically.
