1 Introduction

Introduction

Congratulations on your purchase of the MultiModemZDX or the MultiModemZDXV modem. You have acquired one of the finest intelligent data/fax or voice/data/fax modems available today from one of the world’s oldest modem manufacturers: Multi-Tech Systems, Inc. This manual will help you install, configure, test, and use your modem.

Product Description

The MultiModemZDX and MultiModemZDXV modems incorporate the V.90 protocol, which enables Internet connections at data rates up to 56K bps over standard phone lines. These protocols are able to send data downstream to your computer at high speeds by taking advantage of the fact that data on the phone network normally is converted from digital to analog only once before it reaches your modem. Upstream transmissions and transmissions between client modems have a maximum data rate of 33.6K bps. Line conditions may cause modems to connect at speeds lower than the stated data rate maximums.

The MultiModemZDX and MultiModemZDXV modems offer interactive automatic dialing and command mode configuration. You can store four command lines or phone numbers of up to 31 characters each in the modem’s nonvolatile memory. The modem pulse-dials or tone-dials, and recognizes dial tones and busy signals for reliable call-progress detection. It can also detect AT&T calling card tones. It is FCC- registered for connection to phone networks without notification to the phone company.

Features

Data Features

Supports automatic fallback to slower speeds in noisy line conditions, and fall forward to faster speeds as conditions improve.

Can autodial, redial, pulse (rotary) and touch-tone dial.

Detects dial tones and busy signals for reliable call-progress detection.

Compatible with the standard AT command set used by most communication programs.

Supports the H.324 protocol (videophone ready).

Supports Plug and Play (PnP).

Routes voice, data, or fax calls on a single phone line using distinctive rings.

Can be flash upgraded.

Voice Features (Model ZDXV only)

Supports full-duplex speakerphone. Can record and play back answering machine messages using optional microphone and speaker.

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