Monday, July 2, 2007

Binary contents download via SMS

In Japan contents download is always via browser, but this seems to be simply not the norm in GMS world, where SMS is used for almost everything. I wanted to know how to download some binary data (like a Flash file) to the handset in GSM world. It seems that the keywords are "WAP push sms". In fact, MMS which is the medium operator's email is transported, is actually an SMS with WAP push function. For MMS deliver, the mmsc delivers the sms with URL pointing to the actual MMS message, and the handset will use GPRS to fetch the message via WAP.

References:
How MMS works
Send an SMS to a Java app/MIDlet