Show Bell app for iPhone and iPad
Show Bell is a simple and practical smart doorbell that allows you to remotely monitor the door via 3G / WIFI. The smart doorbell application can be monitored in real time while making voice conversations. When someone presses a ringtone, the application receives a push message. Users can use the application to see the situation outside the door, you can communicate with each other, or the application of active monitoring.
This is demo video access link: https://youtu.be/i4xLNpL7qtE