This is a very good material you have to read if you have an OpenPGP card like me. Discovering OpenPGP Card by Dany Nativel
GSM 是目前世界上最廣為使用的行動電話技術。截至 2002 年 12 月為止，在全球超過 191 個國家中共有 7 億 8750 萬個電話用戶，佔了數位無線通訊市場的 71% 強。
Enter your email address:
Delivered by FeedBurner
All views expressed here are mine alone and not those of my employer.