系统有状态记忆功能，当市电掉电及备用电源耗尽后又重新来电，系统仍保持掉电前设置的状态。

System status and memory function, when the city electricity and standby power-down and then re-depletion calls, the system remained down in front of the state.

youdao

系统有状态记忆功能，当市电掉电及备用电源耗尽后又重新来电，系统仍保持掉电前设置的状态。

System status and memory function, when the city electricity and standby power-down and then re-depletion calls, the system remained down in front of the state.

youdao