1 Introduction

2
MultiModemZBA-V-V92 User Guide
*Though this modem is capable of 56K bps download performance, line impairments, public
telephone infrastructure, and other external technological factors may prevent maximum
56K bps connections.
Chapter 1 - Introduction
Congratulations on your purchase of the MultiModemZBA-V-V92 modem. You have acquired one of
the finest intelligent voice/data/fax modems available today from one of the world’s oldest modem
manufacturers: Multitech Systems, Inc. This user guide will help you to install, configure, test and use
your modem.

Product Description

The Multi-Tech MT5634ZBA-V-V92 external modem provides high-speed data transfer and fax
capabilities for small businesses, telecommuters, and SOHO users. Its support of the ITU-T V.92
protocol enables downstream transmissions at speeds up to 56 Kbps* and upstream transmissions at
speeds up to 48 Kbps when connected to V.92-compatible Internet service providers. Transmissions
between the MT5634ZBA-V-V92 and other client modems are limited to 33.6K bps, as are upstream
transmissions to non-V.92-compatible ISPs and downstream transmissions that are converted more
than once on the telephone network.
The MT5634ZBA-V-V92 also supports “Super G3” ITU-T V.34 fax communications at speeds up to
33.6K bps with Class 2.1 fax commands.
Modem features include Plug and Play operation, callback security, and remote configuration. In
standard mode, the modem can store up to four command lines or telephone numbers of up to 40
characters each in nonvolatile memory. In callback security mode, it can store up to 30 passwords
and dialing strings. Other modem capabilities include modem-on-hold, AT&T calling card tone
detection, pulse and tone dialing, adaptive answer, DTR dialing, U.S. Caller ID reporting, two-wire
leased-line operation, 11-bit operation, V.42 error correction, V.42bis and V.44 data compression,
and self-resetting lightning protection.
Please note that some V.92 features are turned off in the factory default configuration, and may need to
be turned on, depending on your needs. For more information, see “V.92 Operation” on page 17.