Welltech SIPIVR 6800GS V.2.1 - Manual (Page 45)

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Undo:
Step 12:
Click Undo button to return modification, you can see the
configuration hasn’t be changed as figure 2.3-25.
Figure 2.3-25
Redo: Refer Section “ Undo ”
Zoom Zoom In Zoom Out:
Step 13: Select the desired voice range click Zoom button as figure 2.3-26.
Figure 2.3-26
Step 14:
The screen shows the zoom out voice file range as figure 2.3-27.
Figure 2.3-27