SkyATA - USB FXS dongle has been in the market for Skype
application for over 10 years. It is available now in
e-bay as link
This device is developed based on our own USB audio controller
FUP1. It has a dedicated PCM interface for SLIC or DAA
chip for FXS or FXO application. We also have USB FXO dongle
solution at the same PCB size as SkyATA.
Our USB controller IC FUP1 can support standard USB audio device
driver, so our FXS/FXO devices can be recognized and installed
with USB audio driver in Windows or Linux platforms. We can
provide firmware file like dll in Windows for developers to
come out any VoIP solutions.