利用无线系统替代电缆或光缆的有线连接来进行大楼间高速语音或数据通信，正变得越来越流行，特别在美国，这种通信方式已被普遍使用。 点到点的无线通信系统，特别是微波连接，在公众电信网上已使用多年，而现在，这些系统逐渐在计算机网络通信和内部专用小交换机连接中发挥越 It is becoming more and more popular to use high-speed voice or data communications between buildings using wireless systems instead of cable or fiber optic cable connections, especially in the United States where such communications are commonly used. Point-to-point wireless communication systems, especially microwave connections, have been in use on the public telecommunications network for many years, and these systems are now increasingly being used in computer network communications and internal private branch exchange connections