In the past few years Voice over IP has matured, and is fast becoming the way to make cheap rate national and international calls. Many businesses are taking advantage of the cost savings available to them and their customers, through the implementation of Voice over IP telephony. cheap voice overs
I love my Ipad, but you can't store everything on your mobile device, especially if it's something important and has to be private. I can suggest to read about virtual data room comparison.