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MMS pictures to the people

MMS pictures to the people. Johan Montelius jm@ sics .se. MMS. Content SMIL MIME Client Capabilities, usage, settings Infrastructure MMSC, SMTP, WAP. SMIL (smile) Synchronized Multimedia Integration Language.

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MMS pictures to the people

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  1. MMSpictures to the people Johan Monteliusjm@sics.se

  2. MMS • Content • SMIL • MIME • Client • Capabilities, usage, settings • Infrastructure • MMSC, SMTP, WAP

  3. SMIL (smile)Synchronized Multimedia Integration Language • Simple authoring of interactive presentations that integrate streaming audio and video with images, text etc. • History • 1998, used by RealNetworks in their 2G player • Adopted as a W3C recommendation • Macromedia and MS depart • Today • SMIL 2.0, August 2001 • Lack of authoring tools • MS uses HTML+TIME

  4. SMIL code <smil> <head> define regions, media etc </head> <body> define slide show </body> </smil>

  5. <body> <par> <audio src=”foo.avi" dur=”40.00s" begin="3.00s”> <seq> <img src=”bar.jpg" begin=”1.00s" dur=”10.00s> <img src=”zot.jpg" begin=”1.00s" dur=”10.00s> </seq> </par>

  6. MMS is an email • MIME (Multipurpose Internet Mail Extensions) coded email containing a SMIL specification • Media • Text, not limited to 160 characters • Images, jpeg, gif • Audio, coded using speech codecs • Tomorrow: mp3, midi, video, ….

  7. The client Size of content? Audio? MMS delivery? Authoring tool? Colors? Email address as destination ? Display SMIL email? Attached camera?

  8. Infrastructure WAP Gateway MMSC Email server SMTP (MMS Proxy Relay) WSP MMSC Addressing: both MSISDN and Internet email

  9. Sending an MMS WAP Gateway MMSC HTTP 1. Messages sent using WSP Post 2. MMSC handles authorization and billing WSP 3. MMSC replies with a confirmation

  10. MMSC - MMSC HLR MMSC SMTP MMSC 1. If the address is a mobile number the HLR of the receiver is queried for MMSC address 2. Message delivered to receivers MMSC using SMTP

  11. Delivery WAP push proxy MMSC 1. Notification delivered over WAP-push (SMS) containing , sender, size, time etc 2. Client confirms notification, sender is not notified

  12. Retrieval WAP Gateway MMSC 1. Client retrieves messages using WSP GET 2. Sender is notified

  13. Conclusions • Open standards • Internet addressing • Clients can use any WAP gateway/MMSC to send messages. • Any MMSC can use SMS to deliver a WAP push notification. • The MMS market is not owned by the operators!

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