Phone Features

Using the phone function of the Apple iPhone, you can calls by simply pointing your finger at a name or number in your address book, a favorites list, or a call log. All your contacts from a PC, Mac, or Internet device are also automatically synched, you can select and listen to voicemail messages in whatever order you want — just like email. Calls can easily be merged together with just the touch of a button to create a conference call. Conference calling has never been easier!
Link