因此，网络电话系统功能全面，包括自动总机，语音邮件，呼叫排队等。
Therefore most VOIP phone systems come with a rich feature set, including auto attendant, voice mail, call queueing and more.
火灾：在遇到火灾的时候，请打电话联系电话总机，紧急情况警铃会自动响起。
Fire emergency: in case of a fire, please call the hotel operator, the emergency alarm system will give out audible warning. If you have hearing.
应用推荐