似乎是由modem传数据再转发给手机。要推广的话不用3G发射了，都由无线网转。

来源: chinomango 于 2011-03-03 20:56:01 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.