	US 7,403,776 B2
	Mobile communication terminal for transmission of electronic mail in a digital mode
Tatsuya Suetaka, Sagamihara (Japan); Yoichi Nagashima, Hachioji (Japan); and Masataka Yamashita, Hachioji (Japan)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan)
Filed on Mar. 26, 2002, as Appl. No. 10/105,430.
Claims priority of application No. 2001-087523 (JP), filed on Mar. 26, 2001.
Prior Publication US 2002/0137492 A1, Sep. 26, 2002
Int. Cl. H04Q 7/20 (2006.01); H04M 1/00 (2006.01)

U.S. Cl. 455—432.3 [455/466; 455/553.1]

17 Claims

1. A mobile communication terminal capable of selectively communicating with a first base station and a second base station, wherein the first base station corresponds to a first communication mode providing voice communication and mail communication, and the second base station corresponds to a second communication mode providing voice communication and not providing mail communication, the terminal, comprising:

selecting means for selecting one of the first and second communication modes;

detecting means for detecting a mail request;

first determining means for determining whether the selected communication mode is the first communication mode capable of communicating mail or the second communication mode incapable of communicating mail, if the mail request is detected by the detecting means;

first setting means for selectively setting a mode change status;

change means for making an attempt to change the selected communication mode to the first communication mode based on the mode change status, if the determining means determines that the selected communication mode is the second communication mode;

second determining means for determining whether the selected communication mode has been changed to the first communication mode; and

storage control means for, if the selected communication mode has not been changed to the first communication mode, storing the mail detected by the detecting means in a storage of the mobile communication terminal.