Through interphone , service personnel in the car and in the machine room are allowed to speak each other.
Through interphone , service personnel in the car and in the machine room are allowed to speak each other.
通过对讲机，可实现轿内人员与电梯机房人员通话。
Through interphone , service personnel in the car and in the machine room are allowed to speak each other.
通过对讲机，可实现轿内人员与电梯机房人员通话。