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IMS 体系采用层次化的架构,分为接入、核心和业务层,分别执行不同的功能。运营商采用基于 IMS 的统一的核心网络,在部署业务和运营方面提供了极大的便利,但也同时面临着安全问题、产品成熟度以及 P2P 等互联网新兴业务的冲击。
IMS system uses a hierarchical architecture, divided into access, core and business layers, respectively, to perform different functions. Operators using IMS-based unified core network provide great convenience in the deployment of business and operations, but also face the security issues, product maturity and the impact of P2P and other emerging Internet services.