软交换是一种功能实体，为下一代网络（NGN）提供具有实时性要求的业务的呼叫控制和连接控制功能，是下一代网络呼叫与控制的核心。
Softswitch is a function entity. It provides call control and access control of real time service. It is the kernel of NGN's call and control.
提出了一种用于无线移动网络中语音和数据业务共存下的呼叫接入控制方案。
This paper presented a call admission control (CAC) scheme in wireless mobile networks with integrated voice and data services.
在分析上行链路干扰的基础上，兼顾移动性提出了一种分层小区系统的多业务呼叫接纳控制策略。
On this basis, the uplink interference is analyzed and a multi service call access control strategy is proposed.
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