The Messaging tab of the Client editor displays the default input filter. You can add (Add Property button), delete the property (select the property and click the Delete icon), and edit properties (double click on the property). You can also look up a property by selecting the Lookup Properties button. The properties are maintained by LiveVox and should not be edited unless you are a very experienced user. For Inbound Services, the message is located in the Phones tab (Inbound Message). 

Default Input Filter: Displays the default input filter selected for the client. Select the input filter from the drop-down list.

For more information on messaging, see the Messaging Tab section.