搜到这个帖子： https://www.reddit.com/r/NoContract/comments/45hixt/truly_frugal_iphone_with
_truphone_and_google/?
这人说：
"To place a call is roughly 2KiB. to place or receive an SMS within the (GV
) app is rougly 4KiB. so thats roughly 200 calls or text messages for 9
CENTS. No matter where you are in the world. "
200个回拨电话应该是400KB呀？没看懂这人是怎么算的。
有人实测过吗？
