The Akuvox R20K is a compact and affordable SIP video door phone that is perfect for homes and small businesses. It features a 2.4-inch TFT LCD display, a built-in camera, and a variety of advanced features.
 
The R20K's built-in camera allows you to see who is at your door before you open it. You can also use the camera to communicate with visitors, even if you're not home. The R20K also features a built-in microphone and speaker, so you can make and receive calls without having to pick up a phone.
The R20K is compatible with a variety of SIP networks, so you can easily connect it to your existing system. It also supports a variety of advanced features, such as two-way audio, video intercom, and door access control.
 
The R20K is a great choice for anyone who wants a secure and convenient video door phone. 
 
Features:
2.4-inch TFT LCD display
Built-in camera
Built-in microphone and speaker
Compatible with a variety of SIP networks
Supports two-way audio, video intercom, and door access control
 
Benefits:
Improve security
Increase convenience
Easy to use
Versatile