Using the Aastra 673xi / 675xi20It is possible, however, to configure a voice box function key. Use this function keyto call your voice box.1. Press the function key with the Voice msg. function.The voice box is called.2. The next steps are voice controlled. Follow the Voice menu instructions.3. Press the Goodbye key to exit the OpenVoice system.Busy Lamp FieldUse the Busy Lamp Field function key (BLF) to view the free or busy state ofanother internal caller. For every desired call number of a caller you have to con-figure a separate BLF function key (please refer to Function Keys Reference startingon page 24). The LED indicator next to the function key shows the state of thecaller connected:■ Unlit ( ): The caller is free. Press the BLF function key to call the caller.■ Blinking ( ): The caller is being called. Press the BLF function key to accept thecall (“Pickup”).■ Lit ( ): The caller is busy.You can also programme a softkey with the BLF function to one of the additionalkey levels. In this case, you must activate the level with the More softkey so that theLED indicator shows the state of the caller connected.