"3G intercom" App allows you to manage all 3G intercom and access control serial products of GAINWISE, use the App to setup your desired settings and dial-in number , then send command codes via SMS. You can easily control your doors via call or SMS through "3G intercom" App. The main functions include: 1. To program the main settings of 3G intercom & 3G door opener devices. 2. To open the door via call. 3. To open the door via SMS . 4. Check single level & relay status 5. Restore the latest setting parameters