| 摘要 |
<p>A mobile communication terminal device and a transmittable period setting method in the mobile communication terminal device capable of extending a period during which information may be transmitted, even while the information is transmitted using a push-to-talk system. When a PTT button 52 is depressed, a CPU 10 refers to a working memory 30 and checks a state of a speech right. When a mobile phone handset does not acquire the speech right, the CPU 10 executes processing of acquiring the speech right and sets a speech right acquisition period to ten seconds. When the mobile phone handset acquires the speech right, the CPU 10 acquires a speech right acquisition period stored in the working memory 30, and adds ten seconds to the acquired speech right acquisition period. The CPU 10 sets the calculated value in the working memory 30 as a speech right acquisition period.
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