Customizing Your Phone894. Press the OK soft key to confirm the deletion or the Cancel soft key to cancel.NoteDeactivating the Bluetooth ModeTo deactivate the Bluetooth mode via phone user interface:1. Press Menu->Basic->Bluetooth.2. Press or , or the Switch soft key to select Off from the Bluetooth field.3. Press the Save soft key to accept the change.The Bluetooth icon disappears from the phone.The Bluetooth headset won’t be connected anymore, but it will still be paired. When youactivate the Bluetooth mode again, the paired Bluetooth headset will appear in the PairedBluetooth Devices list.Bluetooth mode is configurable via web user interface at the path Features->Bluetooth.DSS KeysThere are three types of DSS keys: Line Keys, Programable Keys and Ext Keys. Details will beintroduced in the following. The SIP-T46G IP phone supports 27 line keys and 13 programablekeys.Line KeysYou can assign predefined functionalities to line keys. You can also define a label for a line keyfeature which will appear on the LCD screen. Line keys allow you to quickly access features suchas recall and voice mail. The line key LEDs will indicate the monitored status when the line keysare assigned with particular features, such as BLF. The default key type of line key 1-16 is Line.The default key type of line key 17-27 is N/A, which indicates that this line key provides noYou can also delete all headsets by pressing the Option soft key and then select Delete All. Formore information, refer to the above steps.If you cannot connect a Bluetooth headset to the phone successfully, we recommend that youdelete the Bluetooth headset from the Paired Bluetooth Device list (if it exists) before pairing it.