... , you must set emergency contact.² Key 1 : send SMS “HM1” via a mobile phone for setting ... emergency contact No.1 .² Key 2: send SMS “HM2” via another mobile phone for setting ... know your children or elders without disturbing them, just send "JY" to Tc-200. After confirmation SMS received ... via TC -200 smoothly.Under this station, Send GDM1 start voice control,when sound around ,the ...