28 CHAPTER 3: 3C OM 2101 BASIC TELEPHONE■ Transfer — Sends the currently active call to another telephone. See“Transferring a Call” in Chapter 5.If your administrator has assigned you to a group that allows you tochange your button mappings, log in to the NetSet utility and go toTelephone Programming > Button Mapping to view or change thecurrent features on your telephone’s buttons. See “User Button Mapping”in Chapter 6. However, changing the settings for the Feature or CallToggle buttons greatly reduces your ability to use some of the NBXsystem features.Status Icons Your 3Com 2101 Basic Telephone allows you to use two telephone linesat the same time.On the display panel, the behavior of the telephone icon next to thenumber 1 (for Line 1) on the first row, or 2 (for Line 2) on the second row,indicates the status of the lines. See Table 6.Table 6 Status Indicator Behavior for the Telephone Icons in the Display PanelIf the telephone icon is The line isNot displayed Available for useSteady In useBlinking quickly RingingBlinking slowly On hold