... card;2. Switch it on;3. Send "BD" to the tracker, you can set this phone number is an emergency call ... he/she is in trouble!4. Send "DT" to the tracker, you can got an E-mail,and open it, you ... map which the device in.5. Send "SKC1" to the tracker. When the cars/houses have some voice, it will call ... you phone!6. Send" SKS1" to the tracker. When the cars/houses have some voice, it will send ...