I purchased a pc5750 mobile broadband card and signed up for the 5gb/month service. I will be using the pc5750 with a mobile dvr to send video from several security cameras to an IP address for remote viewing. Do I first need to configure the pc5750 with vzaccess manager before I can use it in the mobile dvr? If so, can I configure the pc5750 on a laptop but only use it with the dvr?