After introducing the GPRS system, we not only achieve the smooth transition of NSS,but also the inter communicate with UMTS in future and seamless roam in the world.

 
  • 引入GPRS设备后,在3G网络(R99)到来时,不仅能够实现核心网络的平滑过渡,而且能实现现有GSM与未来UMTS互联互通,以保证终端在不同网络之间无缝漫游。
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