
Faster Web 
Browsing With V.44
The latest standard in 
compression
V.92 Quick Connect
for faster connections
Modem-on-Hold
Receive a voice call 
without losing your 
Internet connection
Compatible with 
V.90 and slower 
modems
Advanced Power 
Handling
Protects against brownouts and power glitches
On-board DSP and 
controller
ZoomGuard Lightning Protection
High-quality 
Speaker
Caller ID
Extended Status 
Reporting
Modem documentation and software 
are provided in 
multiple languages.
RoHS Lead-free 
Compliant
7 Year Warranty
Zoom/Modem 
V.92 EXT
56K Faxmodem for 
computers with a serial port
Model 3049CF
The Zoom/Modem V.92 EXT now features a stylish new case and great new features. 
The modem plugs into the serial port of any computer, including computers running
Windows, Macintosh OS, Linux and Unix. The Model 3049CF is fully compatible with 
all features of the latest V.92/V.44 international standards and will also communicate 
at V.90 and slower speeds.
Benefits of V.92/V.44 include: 
Faster negotiation: most modems call the same Internet service number every time.
V.92 modems save the connection profile to significantly reduce connection time. 
Improved data compression: the old V.42bis compression standard was set over
ten years ago, before the World Wide Web! The new V.44 standard is designed for 
the kinds of content seen on the Web today and can noticeably improve your download speeds.
Faster upload speeds: V.92 can send e-mail and attachments up to 40 percent 
faster than V.90 modems.
Modem-on-Hold: allows you to answer an incoming call without losing an Internet 
connection on the same line.*
In addition to the latest data communications technology, the new Model 3049CF 
includes other features which make it superior to the competition, including:
ZoomGuard Lightning Protection: provides the best protection in the industry 
against the leading cause of modem failure.
Advanced Power Handling: protects against brownouts and power glitches which 
can freeze other modems - a "must-have" for unattended modem applications.
Caller I.D. for use with compatible phone services. 
High-quality monitor speaker to clearly monitor the status of the call's progress:
dialtone, busy, ring, voice answer, or any other audible output from the phone line. 
On-board digital signal processor and controller for the highest level of
system stability and compatibility with virtually any operating system that supports a 
serial communications port.
Extended status reporting of the modem's performance with ten indicator lights, 
which include a V.92 indicator and a modem-on-hold indicator.
Voice mail support when used with a soundcard. 
Multiple language documentation and software: the modem documentation
and software are provided in: English, Spanish, Portuguese, German, French, Dutch, 
Italian, and Swedish. Modem hardware documentation is also provided in Greek, 
Polish, and Turkish. Software is also provided in Dansk, Norsk, Chinese and Suomi.
Serial cable included 
7 year warranty

Model 3049
Zoom/Modem V.92 EXT
External for Windows, Macintosh, Linux and other computers with a serial port
System Requirements
• Available serial port (also called RS-232 port, modem port, or COM port)
• Voice Mail requires a soundcard for message playback (microphone required to record a 
personalized greeting message)
• NOTE: This modem’s hardware works with computers running Macintosh, Unix and other 
operating systems which typically include software for Internet access. To assure support 
for other modem features, such as fax, this modem is bundled with software on a CD-ROM 
that requires a Windows operating system and a hard drive.
Specifications
Data Speeds - 56,000 bps receive/48,000 bps send with auto-negotiation of V.92 and V.90
- 300 to 33,600 bps full-duplex supporting all international and Bell standards. 
Fax Speeds - 300 to 14,400 bps, Group 3, Class 1 
Standards Supported - Data: V.92, V.90, V.34, V.32bis, V.32, V.22bis, V.22A/B, V.22, V.23, V.21,
Bell 103/212A
- Compression: V.44, V.42bis, MNP5
- Error Control: V.42, MNP2-4
- Hayes™ AT and extended AT command set compatible
- V.80 for H.324 (videophone) compatibility
International 
Headquarters
Zoom Technologies, Inc. 
207 South Street 
Boston, MA 02111 
USA 
Tel: 617 423-1072 
Fax: 617 423-3923 
email: sales@zoom.com
www.zoom.com
Nasdaq: ZOOM
European Sales
Zoom Technologies, Inc. 
Central House 
2 Kings Road 
Fleet, Hants 
GU51 3AD  UK 
Tel: +44 (0) 1252 582000 
Fax +44 (0) 1252 617920
©2005 Zoom Technologies, Inc., 
207 South Street, Boston, MA 02111 USA 
Zoom is a registered trademark of Zoom 
Technologies, Inc. Windows 98, Windows 
Me, Windows 2000, Windows NT4.0 and 
Windows XP are registered trademarks of 
Microsoft Corporation. 
All other registered trademarks and 
trademarks used herein are the property of 
their respective holders.
Dialing - Supports programmable duration DTMF (touchtone)
- Call progress tone detection (dialtones, busy, ring, etc.) 
Video Support - V.80 (required for point-to-point H.324 video over standard phone lines) 
Additional Features - On-board Controller and DSP
- Downloadable firmware for easy upgrades
- Voice mail with multiple private mailboxes, password protection, remote
retrieval and easy message review (requires soundcard)
- Plug and Play for automatic configuration with Windows 95, 98, Me, 2000,
XP and NT 4.0
- 10 LED status lights: Power, Transmit Data, Receive Data, Off Hook, Carrier
Detect, Terminal Ready, Auto Answer, 56K, V.92 Operation, Modem-On-Hold
Regulatory Approvals - FCC Parts 15B and 68
- UL, C-UL
- Industry Canada
- CE Approved
- RoHS Lead-free compliant
RoHS
2002 / 95 / EC
Physical Specifications - 5.77” x 4.42” x 1.12” (14.6cm x 11.2cm x 2.8cm) 
Warranty - 7 Years
* Compatible call waiting service is required for Modem-on-Hold and may not be available in all areas or countries. Check with your ISP
or online service for the implementation schedule for V.92 and V.44.
Package contents:
• Zoom V.92 EXT modem
• RJ-11 phone cord
• User guide
• Software on CD ROM
• AC power adapter
2076 3049