Multi-Tech Systems MT128ZLX-NT - Manual (Page 225)

MultiMobile MT128ZLX User Guide 6: Windows ME API Usage
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5. The next screen displays a list of modem manufacturers and modem models. In the Manufacturers
pane, highlight “RVS Datentechnik.” In the Models pane, highlight “RVS ISDN V.120.”
Click Next>.
6. The next screens allows you to select which COM port to use with the “RVS ISDN V.120 modem.”
Select “RVS Port (COM 4).” Click Next>.