Multitech MultiModem Cell MTCBA-E1 User Manual page 22

Chapter 2 – Activating and Installing
Click Next.
Browse to the location where you downloaded the driver.
6.
Select the MTSMCIP_MTCMRIP.INF file.
7.
Then click OK.
In the Models window, scroll down the list of Models and select the model that is applicable to your modem.
8.
22 MultiModem Cell User Guide