Button FeaturePrimary Directory Number(PDN) Used to make and receive both outside and intercom calls.Secondary Directory Number(SDN)Used to show the current status of another extension, call the extension,and pick up or transfer calls to it.*1 Only available for the KX-TDE600.How to Follow the StepsAn example of system operation is shown below.Calling Another ExtensionTo call an extension (Intercom Call)The DSS button light shows the current status as follows:Off: The extension is idle.Red on: Your or another extension is using the line.For quick operationIf you are an operator or dial some extensions frequently, DSS buttons are useful.Customising Your Phone3.1.3 Customising the ButtonsCreate or edit a Direct Station Selection (DSS) button.PT and SLTPT/SLT/PS/SIP Extn.Off-hook. Talk.Dial extension numberor press DSS.ORextension no.(DSS)Feature titleOperation stepsThe description of theicons are explained on"Icon Descriptions".ConditionsHintsProgramming References: The related or required programming is noted.To call using a directory, refer to "1.13.2 Using the Directories".Hands-free OperationYou can make an intercom call and have a conversation in hands-free mode using the SP-PHONE button.3.1.2 Settings on the Programming Mode—Preferred Line Assignment—OutgoingSelect the seized line when going off-hook.User Manual 291.1.1 Before Operating the Telephones
