XML example of the Add Department button.
 
      <Dashboard> or <CallButtons>
...
   <Button>
      <title>Add Department</title>
      <action>SIGNOUT_CHANGE</action>
      <value>3</value>
      <enabled>true</enabled>
      <confirm>false</confirm>
      <description></description>
      <icon></icon>
      <scale>CENTER_INSIDE</scale>
   </Button>
...
</Dashboard> or </CallButtons> 
      This action can also be initiated using ADB, an MDM, or a third-party app. For example, in ADB, you can use the following command:
 
      $ adb shell am broadcast -a wfc.voice.SIGN_OUT --es change 3