软交换作为NGN的核心实体，为下一代网络提供具有实时性要求的业务呼叫控制和连接控制功能。

Softswitch is core entity of NGN, which functions real-time service control, call control and connect control.

youdao

软交换是NGN的控制功能实体，为NGN提供具有实时性要求的业务呼叫控制和连接控制功能，是NGN呼叫与控制的核心。

The Softswitch is the the NGN control function entity, it provides the call and connect control function to timely request service for NGN, and is the call and the control core in NGN.

youdao

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.

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