... (be sure it has set phone number) into the GSM base, connect power on, which need 9V12V DC, must be over ... 1000mA current. The lamp on panel will bright on red in 20 second, then, it will ... dial in at anywhere using phone or mob phone, it must be your SIM card number, And inter password (1 ... when alarm happen. When first use this base, it be set unable to send text message, you can dial ...