现在该系统可提供预付费业务、移动虚拟专用网业务和通用接入码业务。
The system provides prepaid services, mobile VPN services and universal access number services.
该质量评价体系为IP虚拟专用网业务提供了一种实用有效的评价方案和评价算法。
The quality evaluation architecture is applied to the IP-VPN service practically and effectively on solutions and algorithms.
虚拟专用网(VPN)是利用公众网资源为客户构成专用网的一种业务。
The VPN service permits to build a private network by using the public network resources.
服务供应商可以利用这种虚拟专用网提供端到端可扩展的、分级别的商业IP业务，而且与用户的配置和管理可以更加简单。
Service providers may use VPN to provide end to end scalable and classified commercial IP services. At the same time, the configuration and management of users will be further simplified.
服务供应商可以利用这种虚拟专用网提供端到端可扩展的、分级别的商业IP业务，而且与用户的配置和管理可以更加简单。
Service providers may use VPN to provide end to end scalable and classified commercial IP services. At the same time, the configuration and management of users will be further simplified.
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