MultiModemDSVD User Guide
2
Introduction
Congratulations on your purchase of your MultiModemDSVD! You have acquired
not only one of the finest intelligent data, fax, and voice modems available, but a
modem that can transmit voice and data at the same time. This owner’s manual will
help you install, configure, test and use your modem.
Product Description
The MultiModemDSVD modem incorporates both the older K56flex
™
protocol and
the newer ITU-T V.90 protocol, both of which enable Internet connections at data
rates up to 53K bps* over standard telephone lines. Using these protocols, Internet
service providers (ISPs) can send data downstream to your modem at 56K speeds;
however, upstream transmissions, and transmissions between client modems, are limit-
ed to data rates of 33.6K bps, as are downstream transmissions that are converted
from digital to analog more than once on the telephone network.
Digital simultaneous voice and data (DSVD) operation allows data transfer and
voice conversation to occur simultaneously during a data connection. On a DSVD
call, a telephone is used as the voice interface. Both local and remote modems must
have compatible DSVD technology to support the DSVD function. The MultiMo-
demDSVD is compatible with the industry-standard ITU-T V.70 DSVD specification.
The MultiModemDSVD offers interactive automatic dialing and command mode
configuration. You can store four command line/telephone numbers, of up to 40
characters each, in the modem’s nonvolatile memory. The modem pulse- or tone-
dials, and recognizes dial tones and busy signals for reliable call-progress detection.
The modem can also detect AT&T calling card tones. It is FCC-Registered for con-
nection to telephone networks without notification to the telephone company.
Features
General
• Complies with major ITU-T, TIA, and EIA international standards to ensure com-
patibility with other modems.
• Distinguishes data, fax, or voice calls using DTMF and tone detection with soft-
ware packages supporting these features.
• Includes Caller ID to identify the caller’s phone number (available on U.S. products).
• Supports serial port speeds to 230.4K bps with compatible serial ports
*Though this modem is capable of 56K bps download performance, line impairments, public
telephone infrastructure, and other external technological factors currently prevent maxi-
mum 56K bps connections.
Summary of Contents for MT5600DSVD2
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Page 3: ...iii...
Page 8: ...MultiModemDSVD User Guide viii...
Page 9: ...1 Introduction...
Page 13: ...2 Quick Start...
Page 26: ...MultiModemDSVD User Guide 18...
Page 27: ...3 Features...
Page 33: ...4 AT Commands S Registers Result Codes...
Page 59: ...5 Solving Problems...
Page 66: ...MultiModemDSVD User Guide 58...
Page 67: ...Appendixes...
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Page 91: ...Index...