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以IP电话网关为核心的IP电话服务模式由于受到电话网关处理能力的限制 ,难以满足大规模IP电话服务的需求。符合MGCP体系的HFC上的IP电话系统充分体现了网关分解 ,从根本上解决了上述问题。本文在对该IP电话系统进行讨论的基础上 ,提出了HFC上基于CableModem的IP电话硬件设计方案。
The IP phone service mode with the IP phone gateway as the core is difficult to meet the demand of large-scale IP phone service due to the restriction of the processing capacity of the phone gateway. The IP telephone system on the HFC in line with the MGCP system fully embodies the gateway decomposition and fundamentally solves the above problems. Based on the discussion of the IP phone system, this paper proposes the hardware design of IP phone based on CableModem in HFC.