when composing a smil file (for MMS) one can use url's for the assets (like the images).
for smil2.0 this is allowed and works (for instance in the browser).

can one tell me if this also works for MMS?

So If I submit my smil message using MM7 for instance to the MMS server, would the server than resolve the url's and add images? Or would the handset get the url's and download the images?
Or is it just plain not allowed?