| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile communication system which can display all chat mail data already transmitted and received in a group even if a user participates in the chat mail group in the middle of chat progress. SOLUTION: Cellular phones #1 and #2 perform group settings for chat mail, and if the chat mail is transmitted and received between them through a mail server, the transmitted and received chat mail data are stored into a memory of each of the cellular phones #1 and #2 to be displayed. When a cellular phone #3 participates in the chat mail group between the cellular phones #1 and #2 in the middle of the chat, it performs group setting for the chat mail at first. The cellular phone #1 transfers chat mail data which are stored in the memory of the cellular phone #1 to the cellular phone #3 to display the chat mail data before the transfer. The cellular phone #3 stores the data into its memory to display them. COPYRIGHT: (C)2005,JPO&NCIPI
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