... -1800-1900mhz 2.16zone wireless 3zone wired 3,can send SMS,MMS, Call Base three bands, GSM 900Mhz, 1800Mhz and 1900Mhz ... ,Support GSM/CDMA, and English and Chinese SMS to control system and motion detecting and arm/ disarm Can ... operation and control the alarm system by remote controllers and SMS to make it arm, disarm, listen-in and photo-taking ...