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Customisation File
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Go to MAINTENANCE → UPGRADE →
GUI Customisation File on the
Grandstream phone's Web GUI.
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Tap on BROWSE under UPLOAD GUI
CUSTOMIZATION FILE and select the
file matching the phone:
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GXV3350: gxv3350cust
GXV3370: gxv3370cust
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GXV3380: gxv3380cust
▪
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The files come with this manual.
Allow up to 5 minutes for the phone to
▪
process the file and automatically
restart.
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