viiChapter 10 Special Features............................................................................... 10-1Do Not Disturb ....................................................................................................................10-1Muting Your Phone .............................................................................................................10-3Background Music..............................................................................................................10-3Alarm Features....................................................................................................................10-4Using the Door Phone ........................................................................................................10-8Executive/Secretary Hot Line ............................................................................................10-9Group Listening ................................................................................................................10-10Locking and Unlocking Your Phone ...............................................................................10-11Off-Hook Voice Announcements (OHVA) .......................................................................10-12In Group / Out of Group ...................................................................................................10-14Call Duration Timer...........................................................................................................10-15Ring Preference ................................................................................................................10-17Chapter 11 Caller Identification (CLIP) .............................................................. 11-1Viewing Number or Name of Caller...................................................................................11-1Viewing Next Caller CLIP ...................................................................................................11-2Storing a Caller Number.....................................................................................................11-2Calling a Stored Number....................................................................................................11-3Storing a Caller Number as a Speed Dial Number. .........................................................11-3Viewing CLIP for Calls on Hold or Parked .......................................................................11-3Viewing CLIP for Previous Calls .......................................................................................11-4Appendix: Additional Information............................................................................ A-1System Feature Codes........................................................................................................ A-1Programmed Messages ...................................................................................................... A-2Entering Characters on the LCD Panel ............................................................................. A-3