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兼顾中国联通 CDMA 和 GSM 两种网络,双网优势共享,从而真正实现全球漫游的中国联通“世界风”双模长2005年4月底将在全国推出。所谓双模卡,就是用户通过一个号就能实现 CDMA/GSM 两种网络的安全使用。而且使用双模业卡务,现有中国联通130/131用户还可以在保留原手机号码的同时,使用基于 CDMA1X 的网络无线数据业务,比如各种游戏、网上新闻、定位之星等。与之前推出的双模手机相比,双模卡最大的优势就是使得联通“世界风”双模业务的使用门槛大为降低。因此,外界认为双模卡的推出将会对双模手机的高端定位进行补充,进一步扩大联通“世界风”双模业务的用户结构。同时,双模卡也提供了号码携带方案,对3G 时代各种不同网络间漫游有一定借鉴作用,代表了未来移动通信运营多模多制武的必然发展方向。
Taking into account both China Unicom’s CDMA and GSM networks, dual-network advantages and sharing, so truly global roaming China Unicom “World Wind ” dual-mode long will be the end of April 2005 will be launched nationwide. The so-called dual-mode card, that is, users can achieve a safe use of CDMA / GSM network through a number. And the use of dual-mode card services, the existing China Unicom 130/131 users can also retain the original phone number, while using CDMA1X-based network wireless data services, such as a variety of games, online news, positioning of the stars. Compared with the dual-mode handset introduced before, the biggest advantage of the dual-mode card is that the threshold of using the dual-mode service of Unicom “Worldwind ” is greatly reduced. Therefore, the outside world believes that the introduction of dual-mode cards will complement the high-end positioning of dual-mode mobile phones and further expand the subscriber structure of China Unicom “Worldwind ” dual-mode service. At the same time, the dual-mode card also provides a number portability scheme, which can be used as a reference for roaming between various networks in the 3G era and represents the inevitable development direction of multi-mode, multi-system and multi-system operation of mobile communications in the future.