Multitech MTCBA-E1-U User Manual page 23

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.
MultiModem Cell User Guide
Chapter 2 – Activating and Installing
23