Just received a new Beta product that Sangoma has developed called the U100, which is essentially a 2 Port, USB-based, Zaptel compliant FXO interface.
This new product allows you to integrate up to (2) analog POTS lines with an Asterisk based IP PBX or appliance, without the need to install a physical hardware PCI card. You simply attach the U100 to your server or appliance via the included USB cable, and from there install the device in a similar manner to a traditional TDM card, using Sangoma’s 3.5.X Beta Driver.
I have one of our engineers playing with the U100 this week, and will post a followup concerning the installation process and some real-world usage of the product. Stay tuned.