Multi-Tech Systems MULTIVOIP MVP-2410 - Manual (Page 205)

MultiVOIP User Guide Technical Configuration (Analog/BRI)
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3. Confirm Connection. If the MultiVOIP is set for an available COM port
and is correctly cabled to the PC, the MultiVOIP main screen will appear.
(If the main screen appears grayed out and seems inaccessible, go to step 4.)