Features368 System functions and features as of R3.0syd-0367/1.3 – R3.0 – 03.20139. 3 One Number user conceptThe One Number user concept is used to assigned several terminals to one user.The user has only one name and one call number with which to identify himself tohis call partners, regardless of which of the terminals assigned to him he happensto be using to make his calls. The advantage is that a user can always be reachedunder the same call number, regardless of where he happens to be. An internal orexternal call to the user is routed to all or only some of the terminals assigned tohim (configurable).Fig. 178 One NumberOther properties:• The user can use the Personal call routing function (*45) to specify which termi-nals calls should be to. 5 additional call routings besides the default setting (callall terminals) can be defined in AMS. For such a profile to be valid, at least oneterminal has to be entered in the call routing. Only one call routing per user canbe active at any one time.• The Ring Alone function (*41) makes it possible for incoming calls to be acousti-cally signalled on only one of the allocated system phones. The call is signalledvisually on all system phones and can also be answered on all the terminals. Thefunction is carried out on the only terminal to call.Note:The function can be executed from any terminal. However the purelyvisual signalling is supported only by the system phones of theAastra 5300 and Aastra 5300ip series and by the Aastra 2380ip soft-phone.• The Busy if busy parameter is used to configure whether or not a user should bebusy for other callers. If the parameter is set to No, the other terminals ring in thenormal way and the call can be answered on one of these terminals.• If a user terminal is busy, calls can still be made with the user’s other terminals.• A user with several terminals can even call himself by dialling his own usernumber. The call is signalled on all his free terminals.
