Button Description Lamp IndicationBLF Used to show the current status of anotherextension, call the extension and transfercalls to it.This button can also be used to performDirected Call Pickup (® see [Direct CallPickup] in 4.6.1.1 Call Control in the Webuser interface or"NUM_PLAN_PICKUP_DIRECT" in 5.5.1 CallControl Settings in the configuration file).Note• BLF (Busy Lamp Field) is an optionalfeature and may not be supported onyour phone system.• It may be necessary to specify theResource List URI to use this feature,depending on your phone system (®see [Resource List URI] in4.6.2.1 Call Control in the Web userinterface or"RESOURCELIST_URI_n" in5.7.1 Call Control Settings in theconfiguration file).Off: The BLF extension is idle.Red on: A corresponding BLF extension isusing the line.Flashing red rapidly: The BLF extension isreceiving an incoming call.ACD Used to log in or log out of a group when ACD(Automatic Call Distribution) is enabled.Note• ACD is an optional feature and maynot be supported on your phonesystem.Off: Logged inRed on: Logged out6.3.1 Flexible Button SettingsTo set Flexible Buttons1. In the Web user interface, click the [Telephone] tab, and then click [Flexible Button Settings].2. Enter settings as described in the following table.When it is necessary to set both parameter 1 and parameter 2, enter a comma between the values.ButtonParameter 1 Parameter 2Description Value Description ValueDN Ringtone 1–32 Line No. • 1–4 (for KX-UT133/KX-UT136)• 1–6 (for KX-UT248)One-Touch Phone Number Up to 32 digits – –Headset – – – –Document Version 2012-02 Administrator Guide 2736.3.1 Flexible Button Settings