一般来说,内部通话系统(对讲电话)是指为两个或更多的相对隔离的人员之间提供通话的系统。内部通话系统型式多样、用途广泛。例如,内部通话系统可以为处于同一栋大楼内但不同房间的人们提供便捷的音频通信。举一个例子,在百货公司或货栈内,身处不同地点的职员通常使用内部通话系统互相联络。内部通话系统的另一个典型用途,正 In general, an intercom system (intercom) is a system that provides a call between two or more relatively isolated individuals. Intercom systems are diverse and versatile. For example, an intercom system can provide convenient audio communication for people in different rooms in the same building. As an example, in department stores or warehouses, employees in different locations often use an intercom system to communicate with each other. Another typical use of intercom system, is