We do lots of calls through Apple’s Facetime and Google Hangouts. We use Google Hangouts for our larger, daily, standup meetings so that we can see everyone’s face even though we are spread out around the world. Yesterday, I participated in our daily standup meeting with 9 other PayrollHero team members while sitting in my car. The quality of the call/video was awesome and I was connected through my iPhone 4S on 3G.
If you have not used Google Hangouts, check them out, it is a great way to have larger “calls” while on the move. To use your iPhone, just download the Google+ app from the app store.