Courier ISDN
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Product Manuals
Simple, step-by-step instructions to connect, install, and register your USRobotics product.

  • Courier I-Modem Manual (PDF)

The following products now have a dedicated support page:
Note: Microsoft Windows 2000 and Windows XP includes drivers for many U.S. Robotics modem products. Click here to see a list of drivers included. Check back periodically for updates if your driver is not included in either version of Windows or if it does not appear on this page.

Courier I-Modem Internal
Firmware Version 2.1.4
This code if for US/Canada Models Only Dated 3/04/97 Now supports Dynamic Bandwidth Allocation and x2 Host Mode The US/Canada version of the Courier I-modem x2 upgrade code cannot be flashed to International versions of the Courier I-Modem 1018764 bytes 04-01-98

Customer Support Number for Courier Modems:
(888) 326-6099