Android/Iphone Remote Control WIFI Video Doorbell Fingerprint IP Intercom Home Door Access Control System Introduction This product is an intercom Access + GSM Door Opener Open the door not only by keyboard and card, but also by a free call . What's more, use cellphone to open the door, no need to install extension Building intercom in every house. Save a lot of cost and trouble to install any extension intercom access device. Save a lot in maintenance cost of each extension device. Specification Quad-band 850/900/1800/1900Mhz; FREE Charge. Open the Door By Auto-rejected Phone Calls By Authorized Numbers High Quality Two-way Voice Communication, and optional audio Every Family has an Admin Password and Authorize 5 Family Phone Numbers Up to 200 families, total 1000 authorized phone numbers, Special for Apartments and Residential buildings Affordable Rates with Top Quality. No More Wiring Installations and other Complex Accessories 2 Relay Outputs (NC/NO), Well compatible with Electronic Locks and DVR Camera 12VDC Power Supply, Relay Time Editable (1-300 seconds). Default“0s”, means not workCan be set up by send Message, also by software on computer (recommended way)200A control two doors together Setting: 1) Open the unit's back cover and insert the SIM card.(B1, B2). 2) Reset the device: Short contact the“R” and”G” in“J4” by the jumper ( C2), Power on the device After 3 seconds, pull out the jumper and removed it to”J69”(C1). The device will be reset to the default setting, all the authorized number will be removed. 3) Wiring connect refer to the picture (D1). Then switch on the device, LED displays . 4) When the SIM card working normally, LED screen displays Basic Operation: Administrator: 1) By Keyboard : Enter the "Family door operate password #"or "Administrator password#" to open the door, if open successfully, will be 2) By phone call, the device will open the door and rejected the call, . means successful Guests: 1) In the standard interface 2) Enter the "Room number#" E.g:"0101#"→ →High quality Two-ways voice communication.