If we use a Hex Editor to open the file, it would look like the following screenshot.
The SDK decodes this format and shows it up as an MMS message. If you wanted to
write your own MMS decoder, you would need to understand this format!
Chapter 7
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Want to Know More about MMS?
MMS is a vast subject. There are different things that happen to MMS??”from
construction to read receipts. A search on Google may not always take you to the
best information on the topic. Openwave and Nokia Forum have very good material
on MMS and developing MMS applications. You should read the articles and
documentation available at both these places before you look at the MMS specs from
www.3gpp.org or www.openmobilealliance.org. Openwave and Nokia also have
tools that you can use to encode and decode MMS using a programming language.
Later in the chapter, we will look at MMSDecoder??”a PHP library to process MMS.
Hold on before you create too many special offers!
Creating and sending MMS messages is not very difficult. But sending too
many messages can get you in trouble. Sending unsolicited SMS/MMS
messages is considered as spam and many countries have strict laws
against it.
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