System 6 main functions:

1. One door station can support thirty two indoor phones at most.
2. With infrared LED inside,which can help you esaily identify visitor at night time.
3. Different door station panel optional:1x1,1x2,1x3,1x4,1x5,1x6,1x7,1x8,2x6,2x8,3x6,3x8,4x6,4x8. Please see the door station panel(2x8 and 1x4)which are listed on right side for your confirm
4. Remote unlocking and three kinds of chord melody rings optional.
5. There are five kinds of indoor phones available which can be connected to the door station. Please see the pictures for those indoor phones shown on the right(Character: Indoor phone).