基于软交换技术的下一代网络是以IP网络为核心，同时支持语音、数据和多媒体业务的融合性的先进网络。
The next generation of networks based on SOFTSWTICH technology, is the IP networks core, and support voice, data and multimedia operation at confluent advanced networks.
为了实现下一代网络在控制层的融合，需要具有支持异构网络环境媒体控制功能的呼叫模型。
The convergence of the control layer of the next generation network (NGN) requires the call control model supporting the media control in heterogeneous network environment.
下一代移动通信系统的特征之一是异构网络的融合。
Heterogeneous network is one of the characteristics of next-generation mobile communication systems.
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