10. The system for voice communication as claimed in claim 7 , wherein the software program further performs a function of emitting memory sound, and the software program further comprises the following program codes: a twelfth program code: receiving a memory message generated after the user clicks at least one storage location unit of the plurality of storage location units; a thirteenth program code: searching for a corresponding storage location according to the memory message; and a fourteenth program code: playing each of the voice files sequentially recorded in the storage location.
10. The system for voice communication as claimed in claim 7 , wherein the software program further performs a function of emitting memory sound, and the software program further comprises the following program codes: a twelfth program code: receiving a memory message generated after the user clicks at least one storage location unit of the plurality of storage location units; a thirteenth program code: searching for a corresponding storage location according to the memory message; and a fourteenth program code: playing each of the voice files sequentially recorded in the storage location. 11. The system for voice communication as claimed in claim 10 , wherein the plurality of function units further comprise a memory playback unit, and the software program further comprises the following program code: a fifteenth program code: receiving a playback command generated after the user clicks the memory playback unit.