Open the Contacts application.
Touch the contact with whom you want to communicate.
In the contact’s details screen, touch the way to start communicating with the contact.
The Dial icon places a call to the number.
The Message icon starts a message.
The Mail icon starts an email.
The Chat icon starts a chat.
Anytime you see the Dial icon next to a number, such as in your Favorites or Call log, just touch it to call that number.