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US Robotics 4000 3-to-1 Call Director

Eliminate unnecessary phone lines.


Limited Quantity In Stock
Typically Ships within One Week
1 Year Double Diamond™ Warranty (Standard)

*Required field

Product Features

  • This money-saving device automatically screens and routes all incoming voice, fax, and modem calls.
  • Telephone line-sharing device eliminates the need for different telephone lines.
  • Easy to use, and works with a variety of phone systems and telephony devices.
  • Active calls won't get interrupted by another device.


  • Automatically routes incoming voice, fax, and modem calls to the correct device.
  • Add new equipment without adding phone lines.
  • Even enables you to eliminate phone lines, streamlining costs.

The USR 4000 3-to-1 Call Director automatically screens and routes incoming telephony signals to the appropriate device. It's ideal for digital signage applications, out-of-band network management, credit card terminals, modems, and other demanding business applications.

The USR 4000 is programmable via telephone keypad — no PC interface or drivers to install. Security and control are managed through security access codes. The device even offers remote programming and diagnostic options.


Double Diamond Warranty Diamond

Double Diamond™ Warranty (Standard)

Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

The US Robitics 4000 3-to-1 Call Director comes with a standard 1 Year Double Diamond™ Warranty (Standard) already included.

During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

Plus, get an Extended Double Diamond Warranty.

You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

* Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.