RE: How to get the OMA DRM right object file coming from WAP Push?

Thank you so much for your information! But I'm a little confused about the relationship between WAP push and SMS. The spec said WAP push is running on top of HTTP (OTA-HTTP) or WSP (OTA-WSP). But from the oFono source, it seems WAP push is on top of SMS. Is this a contradiction? Or I misunderstand something? Many thanks! Amanda