The given application allows you to manage your mobile phone via bluetooth. You will require Nexus 7 or o any other tablet, a mobile phone, handsfree and the application.
Connect your Nexus or other tablet with your mobile phone via bluetoth, and your hansfree with phone. Run the application and dial the numbers on the tablet's screen. And talk through bluetooth headset without need to take your phone. The list of the dialed, missed and received numbers can also be seen in NXS Dialer (not in FREE version).
No need to use your phone to make a call.
YES it possible to place regular calls using a Nexus 7 paired via bluetooth to phone!!!