[Asterisk-Users] Supported USB adapters ?

[Gelson Dias Santos]

       Hello all,

     Reading the varios sources of documentation I can only find reference
to one FXS USB adapter being supported by asterisk: the Digium S100U. Is
there other alternatives? I´ve found that http://www.tjnet.com/ makes a voip
chipset that has been used on a lot of internet phones and usb adapters. Can
we use these also?
    I´m asking this because I´m trying to find a cheap alternative to FXS
interfaces. I need one or two for a hone PBX and ATA´s are very expensive
hard to find here in Brazil.
    Thanks,
    Gelson