| 摘要 |
The invention relates to a method of and a system for transferring a communication session from one service area ( 101 ) to another ( 102 ), where each service area is associated with a transcoding proxy ( 111, 112 ) for transcoding communication sessions established in said service area to and from a format suitable for a mobile device ( 104 ). A gateway server ( 103 ) relays the communication session from a content server ( 105, 106, 107 ) via the appropriate transcoding proxy to the mobile device ( 104 ). When the mobile device ( 104 ) moves to the second service area ( 102 ), the second transcoding proxy ( 112 ) is contacted and session handling is transferred thereto. The transfer operation is transparent to the content server, so the session between mobile device ( 104 ) and content server ( 105, 106, 107 ) stays intact. The invention also relates to a mobile assistant server, a transcoding proxy and a mobile device for use in said system.
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