Use a bluetooth headset or headset for comms. I just feel that the size isn't conducive to be travel friendly as a phone type device but I can definitely see how it would work. I do some Skype and nettalk via the iPad because it's good for international comms but the same can be done on the iPhone. If you have both, you have more battery life to use. The battery in the iPad is by no means small but it may suck down more juice to do voice comms though.