USR3453C Courier 56K Business Modem with V.92

Multi-language Quick Installation Guide (PDF) User Guide (HTML) Quick Reference Card (PDF) Data sheet (PDF) Declaration of Conformity (PDF) Regulatory Addendum (PDF)

WARNING: The firmware below should only be used on model USR3453C and is not compatible with non-RoHS versions USR3453B or 3CP3453.

Firmware update version 2.3.33 Release Notes USR3453C_v2.3.33-ReleaseNotes.txt (2 KB 05/18/2011)

Manual flash procedure for all operating systems: Download the 3453C_v2.3.33.zip file to a temporary location on your hard disk drive. Extract the .zip file to an empty directory on your hard drive. Follow the instructions in the firmware.txt file. 3453C_v2.3.33.zip (173 KB 05-18-11)

Automated flash program for Windows OS (Windows XP or later): Download the USR3453C_v2.3.33.exe file to a temporary location on your hard disk drive. Double-click the .exe file, and follow the on-screen instructions. USR3453C_v2.3.33.exe (439 KB 05-11-11)

NOTE for Windows XP and Server 2003 users: If you do not use V.92 functionality with the USRobotics Internet Call Notification application, you may use the operating system's built-in driver.

Installation for 32 and 64 bit Win 10, Windows 8, Windows 7, Server 2008, Server 2011, Server 2012, Server 2012 R2, Server 2016, and Server 2019 The modem will install using the default driver provided by Windows.

Installation file version 6.01.00.5 - Windows Vista 32 bit and 64 bit NOTE: The modem will initially install using the default driver provided by Windows Vista. Our enhanced driver is available by following the instructions below:

1. Download the file to a temporary location on your computer's hard disk drive.
2. Double-click the file and follow the USRobotics Modem Installation Wizard to update modem driver.

USR3453v6.01.00.5.exe (1.1 MB 02/08/2007)

Installation file version 2.01.00.4 for XP 64 bit, and Server 2003 64 bit INF file NOTE: USRobotics Internet Call Notification and BVRP PhoneTools are not supported on a 64-bit operating system. Download the .inf file to a temporary location on your hard disk drive. Update your modem's driver using this file. 3453x64.inf (64 KB 10/24/2005)

Installation file for Windows 9X, Me, NT4, 2000, XP, and Server 2003 Download the .inf file to a temporary location on your hard disk drive. Update your modem's driver using this file. 3453v92.inf (64 KB 09/01/2004)

Firmware update version 2.3.31 This firmware fixes issues with the modem connecting at 2400 speeds to certain modems. 3453C_v2.3.31.zip (174 KB 28/09/2009)

Automated flash program for Windows OS (Windows 98 or later): USR3453C_v2.3.31.exe (323 KB 24/09/2008)

Firmware update version 2.3.15 This firmware fixes issues with fax functionality.
3453C_v2.3.15.zip (172 KB 01/18/2007)

Automated flash program for Windows OS (Windows 98 or later): USR3453C_v2.3.15.exe (319 KB 01/18/2007)

Firmware update version 2.3.12 This firmware fixes issues with Leased Line and Carrier Loss Redial functionality.
3453C_v2.3.12.zip (172 KB 12/07/2006)

Automated flash program for Windows OS (Windows 98 or later): USR3453C_v2.3.12.exe (319 KB 12/08/2006)