Multi-Tech Systems MT128ZLX-NT - Manual (Page 183)

MultiMobile MT128ZLX User Guide 5: Windows 2000 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.”
Click Next>.
6. The next screens allows you to select which COM port to use with the “RVS ISDN modem.”
Select “COM 6.” Click Next>.
7. The Digital Signature Not Found screen appears.