An asterisk * in the title indicates the field is mandatory.
If a field has a default value, it is shown in the Description column.
If the field type is an array, the Field Name has a .[n] suffix, where n is the array index placeholder.
Object and array field names are listed to provide context. If a field belongs to an object or an array, the full field name is shown in dot separated notation.

Title		Description	Details
	PstnUsages	A list of PSTN usages (such as Local or Long Distance) that can be applied to this voice routing policy. The PSTN usage must be an existing usage. (PSTN usages can be retrieved by calling the Get-CsPstnUsage cmdlet.)	Field Name: PstnUsages.[n] Type: Array
Description		Enables administrators to provide explanatory text to accompany a voice routing policy. For example, the Description might include information about the users the policy should be assigned to.	Field Name: Description Type: String
ScopeClass			Field Name: ScopeClass Type: String
Element			Field Name: Element Type: String
InMemory		Creates an object reference without actually committing the object as a permanent change. If you assign the output of this cmdlet called with this parameter to a variable, you can make changes to the properties of the object reference and then commit those changes by calling this cmdlet's matching Set- cmdlet.	Field Name: InMemory Type: Boolean
Anchor			Field Name: Anchor Type: String
Identity *		Unique identifier to be assigned to the new voice routing policy. Because you can only create new policies at the per-user scope, the Identity will always be the "name" being assigned to the policy. For example: -Identity "RedmondVoiceRoutingPolicy"	Field Name: Identity Type: String
Name		A friendly name describing this policy.	Field Name: Name Type: String

Model: device/skypeforbusiness/CsVoiceRoutingPolicy