Analog Voice Card USBFXO


2 Ports FXO in a convenient USB device. Part of the introductory series optimized for small-budget installations.

Ideal for OEMs, who want to offer low-cost PSTN access in appliances that do

not have PCI or PCI express interfaces, developers who need an external solution, and even SOHO end users who are new to Asterisk.

  • Dual FXO ports
  • Easy installation, no need to open up computer to installPCI/PCIe card
  • Supports up to 2 simultaneous calls
  • Compact plastic enclosure
  • Low power consumption, takes power from USB bus
  • USB 2.0 compliant (compatible with USB 1.1)
  • Overview
  • Specification


Sangoma's USBfxo is a low-cost development tool kit, ideal for those just getting started with Asterisk® or those who just want a simple external solution.

The USBfxo is easy to install. There is no need to open up the computer to insert an interface card. Simply plug it in, and set up your Asterisk system; configure Sangoma's Wanpipe® drivers, as you would with any Sangoma card, and you're set to go. You can even connect multiple USBfxos in one system.

The USBfxo fully supports Asterisk on Linux systems and includes Zaptel/DAHDI drivers.


  • USB 2.0 and USB 1.1 compliant
  • 2 analog FXO ports for connecting to Telco, maximum 0.2 REN (Ringer Equivalence Number)
  • Industry standard USB type B connector
  • Standard length type A to type B cable provided
  • Compact plastic enclosure: 94 mm x 59 mm x 29 mm
  • Low power consumption 200 mA: power drawn from USB bus
  • Field upgradeable firmware
  • Fully supports Asterisk® and includes Zaptel/DAHDI drivers
  • Sangoma Wanpipe® drivers and advanced diagnostics are included
  • Connect multiple USBfxos in one system
  • 5-Year limited warranty
  • RoHS compliant
  • Made in Canada