This kind of " hybrid " network offers a cost - effective way for enterprises to leverage a distributed communications infrastructure , without incurring the cost of owning and managing a large portion of the network ' s components 这类“混合”的网络为企业提供一种低成本的方法,未利用分布式通信的基础设施,同时不会有因拥有和管理网络的大部分设备而产生的成本。