Additionally, unlike other technologies, MPLS won't consume your budget because many existing routers and WAN switches support the standard.

此外，与其他技术不一样，mpls不会增加预算，因为很多现有的路由器和广域网交换器支持此标准。

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Set up and operate CAC (Call Admission Control) mechanisms for the WAN MPLS paths to avoid voice quality degradation.

为广域网mpls路径建立及运作呼叫允许控制(CAC)机制，以避免语音质量下降。

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