With the development of the times, the gradual integration of ATM switching systems, wireless communications, access to technology, HDSL, ASDL, videoconferencing and other advanced technologies.

• 随着时代的发展,目前的交换机系统逐渐融合ATM、无线通信、接入网技术、HDSL、ASDL、视频会议等先进技术。