POST CloudPBX is a user application to configure your CloudPBX extension. You can see you Call Logs and initiate calls out of that list, lookup your Directory, manage your Busy Lamp Fields on your fix phone, Configure/Enable/Disable Call Forwarding. In addition the application allows you to configure and use Remote Office, if you subscribed for that service.
You must have an active POST CloudPBX subscription in order to use this application