The UAE's regulators say the BlackBerry's proprietary network and tight encryption make messages the devices send over the Internet too secure.

阿联酋的监管官员称，黑莓的专用网络，和先进的加密技术使该手机经因特网发送的信息安全得过了头。

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Tesla, for example, has opted to build out its own proprietary network along well-traveled routes.

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Tobin also operates a proprietary network of health care professionals.

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Braziel had the good fortune to design the system around the Internet Protocol, so it was easy to shift from a proprietary network to the much less expensive Internet.

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