Yealink T58A

| Contents | iii
Device Provisioning...................................................................................33
Provisioning Points to Consider........................................................................................................ 33
Boot Files, Configuration Files, and Resource Files.........................................................................34
Boot Files................................................................................................................................34
Configuration Files..................................................................................................................36
Resource Files........................................................................................................................39
Files Download Process......................................................................................................... 40
Provisioning Methods........................................................................................................................ 40
Provisioning Methods Priority.................................................................................................40
Manual Provisioning................................................................................................................41
Central Provisioning................................................................................................................44
Setting Up a Provisioning Server......................................................................................................46
Supported Provisioning Protocols.......................................................................................... 46
Supported Provisioning Server Discovery Methods............................................................... 47
Configuring a Provisioning Server..........................................................................................48
Provisioning Devices on the Microsoft Teams & Skype for Business
Admin Center..........................................................................................49
Device Management..........................................................................................................................49
Editing Your Device Info......................................................................................................... 49
Customizing the Displayed Elements of Devices..................................................................49
Viewing the Device Details.....................................................................................................50
Assigning Configuration Profile to Devices............................................................................ 50
Diagnostic Devices................................................................................................................. 50
Updating Device Software...................................................................................................... 50
Restarting Your Devices......................................................................................................... 51
Configuration Profiles Management.................................................................................................. 51
Creating a Configuration Profile............................................................................................. 51
Editing a Configuration Profile................................................................................................51
Assigning Configuration Profile to Devices............................................................................ 52
Firmware Upgrade..................................................................................... 52
Firmware for Each Device Model......................................................................................................52
Firmware Upgrade Configuration...................................................................................................... 53
Device Customization................................................................................53
Language........................................................................................................................................... 53
Language Display Configuration.............................................................................................54
Language Customization........................................................................................................ 55
Example: Setting a Custom Language for Device Display.....................................................59
Screen Saver..................................................................................................................................... 59
Screensaver Configuration......................................................................................................60
Backlight.............................................................................................................................................62
Backlight Brightness and Time Configuration........................................................................ 62
Time and Date...................................................................................................................................63
Time Zone...............................................................................................................................63
NTP Settings...........................................................................................................................65
DST Settings...........................................................................................................................67
Time and Date Manual Configuration.................................................................................... 71
Time and Date Format Configuration.....................................................................................71