... compression G.711 audio compression Support D1, Half D1, AST-9301DMain Features WIFI 802.11b/g(WEP/WPA/WPA2 ... 802.11 g, support for encryption: wep64, wep128, wpa, wpa2, Wireless Power: 13dbm3G modules (optional) HSPA/UMTS 850 / 900 / 1900 / ... JPEG/BMP image snapshot, video recordingPre-recording Alarm TriggerAlarm 10 seconds previous recording, support alarm upload, Video lost, motion detection, ...