| 摘要 |
PURPOSE: A random alarm function for a cellular phone is provided to insert sound sources in a folder form by implementing an alarm function with a folder method. CONSTITUTION: A random alarm and a random program are applied as a cellular phone alarm. Random software of RBT(Ring Back Tone) is developed. An additional service is added. A random alarm function is distributed by upgrading. A functional upgrade is executed. A random calling function and an RBT function are additionally developed. A simple update procedure is executed.
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