They reduced the cost of running the network and formed a platform for revenue producing services geared toward call set-up and billing.
他们降低了网络运行成本，搭建了一个建立呼叫和计费的平台，用于最能创收的服务。
They reduced the cost of running the network and formed a platform for revenue producing services geared toward call set-up and billing.
他们降低了网络运行成本，搭建了一个建立呼叫和计费的平台，用于最能创收的服务。
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