With the progress of the construction industry network, the bandwidth of the network industry gradually upgrade, can provide QOS services constantly improve the quality assurance ability, build system for every profession and trade all this internal data, voice, video and other three nets fusion network provides the necessary network platform, on the other hand with the development of DSP technology and based on h. 323, SIP multimedia protocol standard, such as voice quality has reached a satisfactory level. Based on a variety of communication of VoIP gateways at the same time, the client between intelligent voice services such as call forwarding, also greatly enriched the traditional voice communication between people of business development, from two aspects of this consideration, using VoIP voice business, in the technology industry is the trend of The Times,
Related to download links://download.csdn.net/download/weixin_38567962/12223543? Utm_source=bbsseo