... 20 second, then, it will flash yellow in 10 second, after that, it will flash green, this show the base work ... mob phone, it must be your SIM card number, And inter password (1 2 3 4 #) to monitor the voice in ... to the GSM-II base, you will hear Bi, then inter password 1 2 3 4 #, (1234 is first password ... lamp on panel will bright on red in 20 second ,After 20 second, The lamp on panel change yellow ,the ...