AT&T has the following chart on their webpage at http://www.wireless.att.com/learn/international/roaming/international-roaming.jsp which outlines roaming rates while outside the U.S. We’re going to concentrate on the Text Messages row, also known as SMS messages.
|SENDING TEXT, PICTURE, AND VIDEO MESSAGES WHEN OUTSIDE THE U.S.|
|Text Messages||$0.50 per message sent|
|Picture and Video Messages||$1.30 per message sent|
Now lets do the math here one step at a time.
- 1024 bytes = 1 KiB
- 1024 KiB = 1 MiB
- 1024 MiB = 1 Gib
- 1024 * 1024 * 1024 = 1,073,741,824 bytes per GiB
- 1,073,741,824 / 140 = 7,669,585 (rounded up)
This means we have to send 7,669,585 SMS messages to send 1GB of data (and this is assuming you can represent any set of data in an SMS message which I don’t believe you can, but that’s besides the point since it would just made this already large number even larger).
Finally, since AT&T charges $0.50 per SMS message, we just multiply our number of messages by $0.50 to get…
If you were sending that 1GiB of data to another AT&T customer, that amount would be
What’s this mean? If you wanted to send a typical HD video from one AT&T cell phone to another via SMS messages, assuming the video is 4.6GiB in size, it would cost:
So there you have it. $35 Million to send a 4.6GiB HD movie from one phone to another using SMS while roaming.
Full Story:ryan kearney