You need to know how to navigate MOC mode.
You need to know the last 3/6 digits of the DDI you wish to
Nearly all NEC systems remain in DAY mode all the time. However there
is a command to switch all the DDI routes from DA...
Show the basics of a user: get-csonlineuser -Identity
firstname.lastname@example.org | FL *voice*, *dialplan*, onpremlineuri
Show the tenant's voice routing
Show the tenant's voice routes: Get-CsOnlineVoiceRoute