full backward compatibility
并提供全向后兼容(full backward compatibility)，t5353。运营商的网络好像对HTC 的服务不感冒，在里面建立个"，但全不是行货！
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And as we add the Advanced Wireless Services (AWS) spectrum, 700-MHz spectrum, LTE and UMB to the mix, I expect the Gobi chipset to keep up and provide for these new bands and capabilities, as well as full backward compatibility.
FORBES: Qualcomm's New Go-Anywhere Chip