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MultiModemISDN User Guide
FeaturesThe MTA128ST-USB communicates over public ISDN telephone lines. Features include:
•Compatibility with EuroISDN (ETSI/DSS1/NET3), French VN4, and Japanese INS64 switch
protocols
•USB interface for easy installation; hot-swappable (Windows 2000 and Windows 98) with other
USB devices without restarting or reconfiguring your PC
•Compatibility with U.S. NI-1, AT&T 5ESS, and DMS-100 switch protocols
•Compatibility with V.110*, V.120, ML-PPP, and X.75 protocols
•ISDN BRI (2B+D) and analog ports
•USB port (Type B)
•Support of PPP (Point-to-Point Protocol) for high speed ISDN connections
•Tone detection to allow use of a standard telephone for ISDN line access (an ISDN telephone
is not required)
•Automatic detection of incoming calls as voice or data
•Windows 2000 and Windows 98/95 software utility for easy ISDN line configuration
•AT commands, S-registers, and result codes
•Ability to use the same communications software as analog modems
•Flash memory for easy firmware upgrades
* The MTA128ST-USB is manufactured in two builds. To determine the build of your terminal adapter
(TA), issue the ATI2 command in a terminal window. If the TA responds to the command with MTA128ST-
USB, then it supports V.110. If your TA resonds to the ATI2 command with MTA128ST-USB-RC, V.110
support is not available.