HOW TO MAKE PHONE CALL WITH AN IPAD

The iPad may look like an oversized iPhone with many features except that it cannot make or receive phone calls.However, there are many applications, both free and paid, that can turn your iPad into a phone and allow you to make and receive phone calls.

For instance, there is Skype that lets you make voice and video calls to other Skype users anywhere in the world for free.
There are other application like Fring and Truephone that you may use to call any landline or mobile number from the iPad over Wi-Fi or 3G. Another option is Line2 that practically converts your iPad into an iPhone for a monthly fee. You can make phone calls, send text messages and the app runs in the background so you can even receive phone calls while not using the app.
Hope this information help, feel free to comment.