| 摘要 |
PROBLEM TO BE SOLVED: To provide the portable telephone set and its base station with excellent convenience where a character message is sent surely when a sender desires. SOLUTION: A control section 20 of the portable telephone set conducts a processing that accepts entry of a character message and entry of designating a transmission destination from a key section 19 by the user with respect to transmission of a text mail, a processing of accepting designation of time when the character message is sent, and a processing that sends the text mail including received character message, the destination designation and time data to a base station via a TDMA processing section 13, a MODEM 12 and a radio section 11. On the other hand, the base station sends the text mail with time designation to a telephone set being the destination at the designated time. Thus, the portable telephone set being the text mail sender may be at the outside of the communication zone at the designated time or may interrupt its power supply, and then the convenience of the text mail function is enhanced. |
