1. Image
要求device可支持的最大分辨率：160*120 pixels--Image Basic
640*480 pixels--Image Rich, Video Basic and Video Rich
可支持的字节数(kb)：30--text; 30--basic image; 100--rich image;100--basic video;
300--rich video
2. PIM(Personal Information Management) 可作为附件传送
vCard version 2.1 (mime-type: text/x-vCard)
vCalendar version 1.0 (mime-type: text/x-vCalendar)
3. Video
4. DRM
可支持DRM forward lock 格式、DCF 格式
DCF mimetype: application/vnd.oma.drm.dcf
fowardlock: application/vnd.oma.drm.message
例子1(forward lock)：
From:user@example.com
To:+40123456789/TYPE=PLMN
Subject:Hi!
X-MMS-Version:1.0
Content-Type:multipart/related;boundary=ID_1234567
--ID_1234567
Content-Type:application/smil
:
--ID_1234567
Content-Type:application/vnd.oma.drm.message;boundary=PUTJTBYRBYTYBV
Content-Location:drmimage.dm
--PUTJTBYRBYTYBV
Content-Type:image/jpeg
Content-Transfer-Encoding:binary
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
--PUTJTBYRBYTYBV--
--ID_1234567--
例子2(DCF)：
From:customer@mmsprovider.com
To:anothercustomer@anothermmsprovider.com
Subject:MMS message with DRM content
X-MMS-Version:1.2
...[More MMS headers]
Content-Type:multipart/related;boundary=firststring;start=secondstring
--firststring
Content-ID:secondstring
Content-Type:application/smil
...[SMIL doc]
--firststring
Content-ID:same-reference-as-in-SMIL-doc
Content-Type: application/vnd.oma.drm.dcf
...[DCF containing Content-ID:same-reference-as-used-in-associated-ROs]
--firststring--
5. SMIL(Synchronized Media Integration Language)
当MM内容包含SMIL格式的表现层时，content type必须为application/vnd.wap.multipart.related，否则使用application/vnd.wap.multipart.mixed
例子1（包含两个slide,其中一个包含一段video）
例子2（包含3个slide）：
left="0" top="0" /> ="0"/> 6. Text UTF-8 and ASCII(lower half of ISO8859-1 7. Audio 必须支持AMR-NB or 13K
