You can send FIND [the name of the person you want to track],[his 11-digit cell no] then send to 7000.
The system will send an SMS to your son informing him that you are requesting his permission to track your location. Your son just needs to reply YES or NO to the SMS message. Once your son replies with a YES, then you will already receive an SMS alert of your son's location and your son will be added to your Tracker List. You will be charged P5 for the location alert.