Introduction

In the first generation of web-based video calling, families could stay in touch (e.g. Skype), while companies could conduct business meetings over several locations (e.g. Polycom, Cisco Telepresence, etc.). Mobile-based video calling options dramatically changes things. iPhone users can now call one another via the pre-installed Facetime app, as long as both parties are connected to a WiFi network. With Skype app (iPhone, Android and Symbian), Skype users can video-call one another from their smarthphone over WiFi or 3G. Let's consider a few use cases to demonstrate how mobile video changes things.

Calling Home While on Business Travel

Let's say Mom has gone on a business trip for a few weeks. In a typical scenario, Mom calls home each night to check in with Dad and the kids. If Mom has her PC with Skype installed, perhaps they do a video call every other night. Now, imagine Mom has an iPhone. She connects to her hotel's WiFi network and dials up her daughter at home using Facetime. The daughter has an iPod Touch and is connected to the WiFi network at home.

Now, Mom and daughter can see and hear one another. And with mobile, they can now see their surrounding environments as they walk about. When Mom asks, "Are you taking good care of my garden?", the daughter can walk to the garden and give Mom a close-up view of the vegetables. When the daughter asks, "How is your hotel room?", Mom can give her a quick tour.