User Guide for the T48G Skype for Business phone6Icons DescriptionOff LineUnknownLED InstructionsPower Indicator LEDLED Status DescriptionSolid red The phone is initializing.Fast flashing red The phone is ringing.Slow flashing red The phone receives a voice mail.OffThe phone is powered off.The phone is idle.The phone is busy.The call is placed on hold or is held.The call is muted.NoteUser InterfacesTwo ways to customize configurations of your T48G Skype for Business phone: The user interface on the Skype for Business phone. The user interface in a web browser on your PC.The hardware components keypad and touch screen constitute the phone user interface, whichallows the user to execute all call operation tasks and basic configuration changes directly onthe phone. In addition, you can use the web user interface to access all configuration settings. Inmany cases, it is possible to use either the phone user interface and/or the web user interfaceinterchangeably. However, in some cases, it is only possible to use one or the other interface tooperate the phone and change settings.Phone User InterfaceYou can customize your phone by tapping to access the phone user interface. TheAdvanced option is only accessible to the administrator, and the default administratorThe above introduces the default power indicator LED status. The status of the power indicatorLED is configurable via web user interface. For more information, refer toYealink_Skype_for_Business_HD_IP_Phones_Administrator_Guide.