US Robotics 56K INTERNAL VOICE FAXMODEM - QUICK FOR WINDOWS REV 1.2 Guía de usuario Pagina 20

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20 CHAPTER 1: INTRODUCTION
Modulation Schemes
V.90 (backwards-compatible with all US Robotics 56K Standards)
ITU-T V.34+
ITU-T V.34
ITU-T V.32bis
ITU-T V.32
ITU-T V.22bis
ITU-T V.22
ITU-T V.23
Bell 212A
ITU-T V.21
Bell 103
Security
PAP, CHAP and MS-CHAP support
Callback support for dial-in and dial-out calls
Upgradeability
Flash memory for field firmware updates
Firmware posted on 3Com’s Web site
Fully upgradeable to future 56K standards
Diagnostics
LED status display
Statistics display
Warranty
3Com Corporation Limited Lifetime Warranty (refer to the end of this User
Guide for details).
Support for Internet Applications
Support for applications that use the User Datagram Protocol (UDP) and the
Transmission Control Protocol (TCP). The UDP protocol is used primarily by Internet
games.
Look for the latest list of Internet applications and games that are interoperable
with the LAN Modem at
http://www.3com.com/support/docs/lanmodem/.
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