152 CHAPTER 3: D EVICE CONFIGURATIONThe Lock feature (see “Creating Groups and Button Mappings” onpage 153) allows you to control button behavior. If you enable Lock, achange that you make at the group level passes to every telephone in thegroup and it cannot be overridden for individual telephones. If youdisable Lock, you can override group button mappings at the device level.(This Lock feature is not the same as the Telephone Locking feature that auser can apply to an individual telephone. See the NBX Telephone Guide.)Creating a BusyLamp/Speed DialButton MappingA Busy Lamp/Speed Dial button is an Access button, with a light, that ismapped so that it can function as a speed dial to another extension andalso indicate when that extension is in use. When you press the Accessbutton mapped to the Busy Lamp/Speed Dial button, you dial themapped extension. When the other extension is in use, the lamp lights onyour telephone.For the NBX Attendant Console, the default configuration created by theAuto Discovery process creates Busy Lamp/Speed Dial mappings for up tothe first 100 extensions on the system.A CO line mapped directly to telephones (Key mode) does not gettransferred to any user’s voice mail. For more on key mode, see Creatingand Managing Button Mappings on page 150.To create a Busy Lamp/Speed Dial button mapping:1 Select NBX NetSet > Device Configuration > Telephones.2 Select a telephone in the list and click the Button Mappings button.3 On the Telephone Configuration dialog box, select an available Accessbutton that has a light. In the Type box, select Line/Extension. In theNumber box, specify the extension of the telephone that you want as theBusy Lamp/Speed Dial target.Creating a DelayedRinging PatternYou can define a ringing progression for a line that is mapped to multipletelephones. For example, you can configure a call to ring immediately attelephone 1, begin ringing at telephone 2 after 4 rings, and then beginringing at telephone 3 after 8 rings. Any of the telephones can pick upthe call at any time, even if it has not yet started audibly ringing at aparticular telephone. (The light flashes during all rings.)Delayed ringing works with Key mode only, that is, with line card portsmapped to buttons on two or more telephones.
