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Multi-user multimedia messaging services

  • US 20050220064A1
  • Filed: 05/06/2003
  • Published: 10/06/2005
  • Est. Priority Date: 05/06/2002
  • Status: Active Grant
First Claim
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1. A method for efficient transmission of a multimedia message from an originator user device to recipient user devices, the method comprising the steps of sending a first message from the originator user device to an originator server, the first message comprising the multimedia message and an indication of addresses of the recipient user devices, identifying a recipient server associated to the recipient user devices based on the indication of the addresses, sending the first message to the recipient server, identifying the recipient user devices based on the indication of the addresses, executing a multicast delivery of the multimedia message to the recipient user devices by allocating a multicast address, sending the multicast address to the recipient user devices, embedding the multimedia message in an object suitable for a multicast transmission, preparing by the recipient user devices for a reception of the object, joining by the recipient user devices a multicast group according to the multicast address, and sending the object via the multicast transmission to the recipient user devices.

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