| 1, For single family house.
2, Base component: 1 door station, 1 indoor phone, 1 power supply.
3, Max. component: 2 door stations, 4 indoor phones, 1 power supply.
4, Intercom between door station and indoor phone.
5, Intercom between indoor phones.
6, Survey on indoor phone without calling outside.
7, Speak... |
