industry network evolution
产业网络演进
以上为机器翻译结果，长、整句建议使用 人工翻译 。
As the architecture of next generation network, IMS has become a hotspots issue in the industry. In this paper, the evolution of PSTN network and the issue of IMS will be discussed.
IMS作为下一代网络的架构在业界已经讨论得非常火热，将探讨一下PSTN网络的演进和IMS问题。
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