Model 3453C

couriertm 56k* business modem

V.Everything® and V.Everywhere™ Technology

The USRobotics Courier 56K Business Modem with V.Everything andV.Everywhere technology is the latest in the distinguished Courier line.

Many modems claim reliability, but few match the real-world performance

of Courier modems. Even fewer offer the multitude of advanced business features found on this modem: global usage, Carrier Loss Redial, and Dial

and Dialback Security. Remote management capabilities let you configure,

set up, update or troubleshoot your modems from almost anywhere. When

failure is not an option, you need the world-class capabilities that only come

from the top of the USRobotics product line.

Incredible

Compatibility and

Flexibility

• V.Everything® Technology provides support for all key communications protocols

• V.Everywhere™ Technology so that one, highly reliable hardware platform supports connections

with most international phone systems

• Synchronous/Asynchronous, and leased-line support

• Supports all major operating systems: DOS, Windows 3.1/95/98/Me/NT 4.0/2000/2003/XP/

Vista, UNIX, Linux – any operating system that supports an RS-232 serial port

• Universal power adapter automatically handles global power variations from 100 V to 240 V

Integrated

Multilayered

Security

• Dial security:

• Autopass works with up to 79 users, and automates logging in between two Couriers by

including the password in the V.42 error-control request

• Password Prompting, works with any type of modem, where the host Courier requests a

password from those dialing in

• Dialback security checks incoming calls for password authorization and then dials back

predefined numbers to assure only appropriate users establish connections

Rock-solid Reliability

 • Carrier Loss Redial automatically senses, redials, and re-establishes dropped remote connections

– creates a virtual leased-line connection between two modems, over regular dial-up lines

• Advanced Line Probing technology finds the fastest connection and maintains connections

under poor line conditions

• Brown-out Protection assures you stay connected even in areas with poor power facilities

• Robust, business-oriented design, component selection, testing, and experience to support nonstop

operation

Powerful

Management Tools

• Remote Management lets you configure or troubleshoot from almost anywhere

• Instant Update† automatically checks the USRobotics web site for code updates when you’re

online and downloads new features at your convenience

• Remote Flash capability lets you upgrade Courier modems at remote locations from a central site