| 摘要 |
PROBLEM TO BE SOLVED: To surely inform a user about a call charge on the way of calling in a portable telephone. SOLUTION: A control section 90 discriminates as to whether a remaining time of a countdown timer dt is 6 seconds or longer (step 310). Thus, the control section 90 discriminates as to whether the time of an added call charge by each charging unit is 6 seconds or longer. When the remaining time of the countdown timer dt is less than 6 seconds, multiplying a charging unit monetary amount (f) stored in a register (df) 91 with a charging call unit stored in a register (U) 93 calculates a speech charge at the addition to the call charge next time. Voice announce data, in matching with the calculated call charge, are called from voice guidance data (V) 82 in a memory 80, and a voice 260 causes the called voice announce data to be superimposed on a received voice and allows a receiver 50 to output the superimposed data (step 320).
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