... 1,Touch keypad,Big LCD display 2,GSM+PSTN dual network 3,8 wired + 30 wireless zones ... L&L-816Name: 38 zones Touchpad LCD Security GSM+PSTN Alarm SystemGSM Frequency: 850/900/1800/1900Mhz (all ... Touch keypad; Big LCD displays 2. GSM+PSTN dual network. If PSTN is disable, it will switch to GSM automatically ... could do free setting. 5. Alarm Inform Mode: PSTN Call, GSM Call, GSM SMS 6. Alarm SMS include ...