be able to call in and call out  by speak, for example: When you say " please call Tom",then your phone will auto call Tom without your finger dial phone number.of course, your phone should store name and phone number in address  book first.  be able to send message  by speak, for example: you say send message to Tom,  the phone will reply what do you sent, you say "invit Tom dring at 21:00", the phone wille repeat "invit Tom dring at 21:00, are you sure sent out", you say:"yes，please sent out",then the message will sent to Tom at once. the third function is anti-lost.