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VoLTE商用后,提供了全IP的语音和视频业务,需要网络提供端到端QoS业务保障,与传统数据业务相比,PCRF节点容灾在VoLTE网络中显得尤为必要。
After VoLTE is commercialized, it provides all-IP voice and video services and requires the network to provide end-to-end QoS guarantee. Compared with traditional data services, it is especially necessary for a PCRF node to be disaster tolerant in a VoLTE network.