ISDN uta is a enhanced nt1 + that integrated the USB data port in it. User can access the internet via the USB data port directly, no other external ISDN ta needed any more. Beside the USB data port, uta has another s interface and two analog ports, which can be connected to digital phone set and analog phone sets, g3 / g4 fax, modem, and other standard ISDN devices.  Features Integrates the functions of analog terminal adapter (ta) , USB data port and a network termination-1 (nt1) device Network connections: ISDN u interface Provides two digital s / t ports and two standard analog ports (pots)  One USB data port for direct connection to PC Support ISDN capability and analog devices U-interface protection against lightning or power surges External power supply. Allows for normal-mode power (local power) and restricted-mode power (remote power)  Support u-loop back Low power consumption Easy configuration via analog (dtmf) phones Supplementary services: cw (call waiting) , MSN (multiple subscriber number) , tp (terminal portability) , hold (call hold) , 3pty (three party) , clip (caller ID)  Analog ports support fsk caller ID (V. 23) .  Internal communication and internal call transfer between two analog ports.  Five LED indicators to show power, u-and s / t-interface synchronization, b channel status.  USB data port supports data drivers for win98, win2k, etc.