... / avl to configure parameters,display information,call,send&receive SMS,etc. Working with RS vehicle tracking system / vehicle tracker ... Signal display4) SMS receive and send, including predefined SMS send,English SMS send. SMS storage, 30 predefined SMS +10 sent SMS+10 received SMS5 ... can set SP SMS service center No, SMS gateway center No.,GPRS monitor center IP adderss and port, hotline, Lock ...