MaxTech Plug & Play Internal Voice/FAX/Data/SVD... User manual

Part#MAN128Rev.1.0 K56Plus-L/CPI-SVD
High Performance
K56Plus/V.34+/V.42bis
56K BPS
Plug & Play Internal
Voice/FAX/Data/SVD
Modem
With Advanced
Speakerphone functions
User's Manual
Contents
Section One - Introduction ..........................1
Section Two -Installation............................. 1
Section Three - AT Command Set............... 7
Section Four - S Registers........................ 14
SectionFive - Result Codes...................... 15
SectionSix-Troubleshooting.................... 15
Section Seven - Support and Service ....... 16
Appendix A - Specifications ..................... 16
Appendix B - Notices ................................ 17

The information contained in this manual has been
validated at the time of this manual's production.
The manufacturer reserves the right to make any
changes and improvements in the product de-
scribed in this manual at any time and without
notice. Consequently the manufacturer assumes
no liability for damages incurred directly or indi-
rectly from errors, omissions or discrepancies be-
tween the product and the manual.
All registered trademarks are the property of their
respective owners.
Copyright©1997Allrightsreserved.Noreproduction
ofthisdocumentinanyformispermittedwithoutprior
writtenauthorizationfromtheManufacturer.

1
Section One - Introduction
This 56 Kbps* Plug and Play FAX/Voice/Data/
SVD Speakerphone Modem connects your computer
toallpopularhighspeedmodemsavailabletoday.The
modem incorporates “K56Plus” (56Kbps) technology
to provide increased download speeds using regular
telephone lines. The modem incorporates Plug and
Play for ease of installation. It features speakerphone
capability for hands-free communication and full-du-
plexanalog/digitalsimultaneousvoiceanddata(SVD)
over a single telephone line.
This manual describes the hardware installation
procedures for your new modem. Additional informa-
tion on AT commands and S-registers is provided so
that your system can be customized for a particular
operating environment.
*Note: K56Plus is capable of downloading at 56Kbps.
However, current FCC regulations limit its speeds to
53Kbps.
Section Two - Installation
Thissectionwillprovidestepbystepinstructions
on how to install your new 56 Kbps FAX/Voice/Data/
SVD modem. Installation of this modem product is a
three-step process consists of 1) actual hardware
installation, 2) plug and play configuration, and 3)
communication software installation and configura-
tion.
2.1 Unpacking Your Modem
Be certain that you have all the items listed
below. This package contains:
• A modem • A telephone cable
• User's manual •Softwareforthemodem
• Software user's manual
2.2 What You Need
You will need:
1. A phillips-head screw driver
2. A) A Plug and Play enabled Operating System

2
(e.g., Windows 95),
or
B) APlugandPlayRevision1.0acompliantPC.
ProceedtoSection2.3nowifyouhaveevery-
thing required.
If you have neither 2A or 2B above, youneed to
install Windows 95 to provide Plug and Play function-
ality to your PC.
2.3 Hardware Installation
Installation of this modem requires opening and
manipulating your PC. Exercise caution at all times
when working with AC powered and static-sensitive
equipment.Turn offand unplugyour PCbefore instal-
lation. Discharge any static electricity from your body
by touching any bare metal surface of the PC system,
such as its power supply cover.
1. Turn off and unplug your computer from the AC
outlet.
2. Remove your computer's cover (refer to your
computer's owner's manual).
3. Select any available half-card slot, and then re-
move the slot cover (refer to Figure 2-1).
4. Carefully slide the internal modem into the slot
you have chosen, applying even pressure until
the modem is completely seated in the slot.
5. Fasten the retaining bracket with the screw from
the slot cover. Make sure the modem is properly
aligned. Store the slot cover for future use.
6. Replace the computer cover and plug in your
computer.
Figure 2-1 Expansion Slots

3
7. Connect the telephone cable from the modem's
LINE connector to the telephone wall jack.
8. Optionally,connectyourtelephonetothemodem's
PHONE connector.
9. Turn your computer on. Your modem is now
installed.
2.4 Hardware Configuration (Plug and Play)
Your modem is configured using the Plug and
Play (PnP) capabilities of your computer. Plug and
Play is a set of specifications that define the ability for
thecomputerhardware andoperatingsystem toauto-
matically configure all compliant devices that are in-
stalled, relieving the user of the need to determine
whichaddressesandinterruptstouseforeachdevice.
Consult your PC's owner's manual to determine if it is
PnP Revision 1.0a compliant. You most likely have a
PlugandPlayRevision1.0acompliantsystemifitwas
purchasedafterJune1994oriftheBIOSisdatedafter
June 1994.
Proceed to one of the following sections, de-
pending on your system's configuration:
• Section 2.4.1 if you are running Windows
95 (with or without a Plug and Play PC)
• Section 2.4.2 if you are running Windows
3.1x or DOS on a PnP-compliant PC.
2.4.1Configuring in Windows 95
The version of Windows 95 you have will deter-
mine which set of dialog boxes is presented to you
wheninstallingthemodeminWindows95.Proceedto
one of the following sections, depending on your
Windows 95's diaglog box:
• Section 2.4.1.1 when Windows 95 starts for
the first time after card installation, it
detects the modem and it displays the New
Hardware Found dialog box
• Section 2.4.1.2 when Windows 95 starts for
the first time after card installation, it
detects the modem and it displays the
Update Device Driver Wizard.

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2.4.1.1 Windows 95 Release 4.00.950
When Windows 95 starts for the first time after
cardinstallation,itdetectsthemodemanddisplaysthe
New Hardware Found dialog box.
Under New Hardware Found, when asked to
“Select which driver you want to install for your new
hardware,” click on “Driver from disk provided by
hardware manufacturer.” Click “OK.”
The Install From Disk dialog box now instructs
you to “Insert the manufacturer's installation disk into
the drive selected, and then click OK.” Insert the
modem'sdriverdisketteintothediskdriveandtypeA:\
(orB:\ifinsertedindriveB)inthe“Copymanufacturer's
files from:” box. Click “OK.”
Windows 95 may request its own installation
disks or CD-ROM for some files. Insert the Windows
95disksor CD-ROM as required. Whenall necessary
filesarecopied,themodemisconfigured.Windows95
will assign the modem a COM port and IRQ line.
Proceed to Section 2.5.
2.4.1.2 Windows 95 Release 4.00.950 B
When Windows 95 starts for the first time after
cardinstallation,itdetectsthemodemanddisplaysthe
Update Device Driver Wizard.
Insert the driver disk into the disk drive and click
“Next.” Windows will find the driver on the driver disk.
Click “Finish. Windows 95 may request its own instal-
lationdisksorCDforsomefiles.InserttheWindows95
disks or CD as required.
Windows will now find a second device on the
modem.Makesurethatthedriverdiskisstillinthedisk
drive and click “Next.” Windows will find the second
driver. Click “Finish” to complete the installation.
Whenallnecessaryfilesarecopied,themodem
is configured. Windows 95 will assign the modem a
COM port and IRQ line. Proceed to Section 2.5.

5
2.4.2Configuring in a Plug and Play System with-
out Windows 95
When this modem is installed in a Plug and Play
systemwithoutWindows 95, the computer'sBIOS will
assign a COM port and IRQ line to the modem.
Proceed to Section 2.5, Software Installation/
Configuration.
2.5 Software Installation and Configuration
You are now ready to install and configure the
communicationsoftware.Refertoyoursoftwaremanual
for installation procedures.
Wesuggestthefollowingcommunicationparam-
eters when you first use your data communication
software.Consult the softwaremanual forinformation
on using these and other parameters/features.
57,600 bps; 8 data bits; no parity; 1 stop bit;
RTS/CTSflowcontrolsetto“on;”initialization
string: AT&F
We suggest that a “Generic Class 1” or “Ge-
nericClass2”modemtypeshouldbeselectedinyour
fax software, and a “Lucent” modem type should be
selected in your Voice software.
Note that your software must be configured to
communicate with the modem on the same COM port
and IRQ line used by the modem.
2.6 Using the Fax, Voice, SVD, and
Speakerphone Capabilities of the
Modem
Your modem has built-in advanced FAX, Voice,
SVD,andFullDuplexSpeakerphonefunctions.Please
consultyourFAX/Voice/SVD/Speakerphonesoftware
manual about procedures on using these features.
Speakerphonefunctionsrequireacorrectlycon-
figured sound card with attached microphone and
speaker.
Voice functions include recording and playback
of voice prompts (files). You may record or playback
voicewithyourmodembyattachingatelephonetothe

6
RJ-11 jack marked “PHONE” or by attaching a micro-
phone to the MIC jack and a speaker to the SPK jack
of your sound card. Follow instructions in the FAX/
Voice/Speakerphonesoftwareon recording and play-
back of voice prompts.
2.7 Testing Your Modem After Installation
In order to test your modem you should be
familiar with your communication software. Load and
set up your communication software and enter into
“terminal mode.” Make sure that the COM Port and
IRQ settings of the modem match the software. Type
AT on your terminal screen and press ENTER. You
maysee“AT”,“AATT”ornothingonthescreen.Inany
case, the modem should respond with an OK or 0. If it
does not, either the modem may not have been in-
stalled properly or the software has not been properly
configured. Review Sections 2.2-2.5 and be certain
that the modem and the software have been properly
installed. If required, refer to Section 6 for additional
troubleshooting information.
2.8 Using Your Modem
The communication software included with your
modem product provides a user friendly interface to
access the fax, voice and data functions of your
modem. Thissoftwareshouldbesufficientforallof
your communication needs . There may be times
when you need to access the modem manually via
modem commands. Read Section 3 for a summary
descriptionof the modemcommand set beforemanu-
ally accessing the modem. You may want to read the
software manual first, however, as the software may
already provide a user friendly method of accessing
thefunctionsyouneed(i.e.dialingoransweringcalls).
2.9 Where To Go From Here
Youshouldfamiliarizeyourselfwiththefunctions
available from the included software by reading its
manual. You will be accessing most, if not all, of the
modem's functions from this software. You may also
useany other commerciallyavailable communication
software with the modem. Read Section 3 only if you

7
are interested in accessing the modem manually, and
not through the included software. Section 4 and 5
containreferencematerial, and can beskipped. If you
have difficulties getting your modem to work, read
Section 6 - Troubleshooting to find answers to com-
monly asked questions and problems.
Section Three - AT Command Set
3.1 Executing Commands
Commands are accepted by the modem while it
isinCommandMode.Yourmodemisautomaticallyin
CommandModeuntilyoudial anumberandestablish
aconnection.Commandsmaybesenttoyourmodem
from a PC running communication software or any
other terminal devices.
Your modem is capable of data communication
at rates of: 300, 1200, 2400, 4800, 9600, 14400,
19200, 28800, 38400, 57600, and 115200 bps. Make
sureyourCOMportbaudratesettingsinyourcommu-
nications software is set to one of the above speeds.
3.2 Command Structure
All commands sent to the modem must begin
withAT andendwithENTER. All commandsmay be
typedin eitherupperorlowercase,butnot mixed.To
make the command line more readable, spaces may
beinsertedbetweencommands.Ifyouomitaparam-
eter from a command that requires one, it is just like
specifying a parameter of 0. Example:
ATH [ENTER]
This command causes your modem to hang up.
3.3 Basic AT Commands
In the following listings, all default settings are
printed in bold text.
Command Function
AManually answer incoming call.
A/ Repeat last command executed. Do not
precedeA/withATorfollowwithENTER.
B_ B0 CCITT mode

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B1 Bell mode
B2 V.23 originate mode @ 75 bps transmit/
1200 bps receive
B3 V.23 originate mode @ 1200 bps
transmit/75 bps receive
B15 Selects V.21 at 300 bps
B16 Selects Bell 103 at 300 bps
D_ 0 - 9, A-D, # and *
L last number redial
P pulse dialing
T touch-tone dialing
W wait for second dial tone
, pause
@ wait for five seconds of silence
! flash
; return to Command Mode after dialing
DS=n Dial one of the four telephone numbers
(n=0-3) stored in the modem’s non-
volatile memory.
E_ E0 Commands are not echoed
E1 Commands are echoed
+++ Escape Characters - Switch from Data
Mode to Command Mode
H_ H0 Force modem on-hook (hang up)
H1 Force modem off-hook (make busy)
I_ I0 Default speed and controller version
I1 Display factory ROM checksum
I2 Internal memory test
I3 Default speed and controller version
I4 Datapump firmware version
I9 Country code
L_ L0 Low speaker volume
L1 Low speaker volume
L2 Medium speaker volume
L3 High speaker volume
M_ M0 Internal speaker off
M1 Internal speaker on until carrier
detected
M2 Internal speaker always on
M3 Internalspeakeronuntilcarrierdetected
and off while dialing
N_ N0 Disable Autoscan mode
N1 Enable Autoscan mode

9
O_ O0 Return to Data Mode
O1 Return to Data Mode and initiate an
equalizer retrain
PSet Pulse dial as default
Q_ Q0 Modem sends responses
Q1 Modem does not send responses
Sr? Read and display value in register r.
Sr=n Set register r to value n (n = 0-255).
T Set Tone Dial as default
V_ V0 Numeric responses
V1 Word responses
W_ W0 Report DTE speed only
W1 Report line speed, error correction
protocol, and DTE speed.
W2 Report DCE speed only
X_ X0 Hayes Smartmodem 300 compatible
responses/blind dialing
X1 Display connect message according to
AT\V, blind dial, and ignore busy tone.
X2 Same as X1 plus dial tone detection
X3 Same as X1 plus busy detection/blind
dialing
X4 All responses and dial tone and busy
signal detection
X5 Same as X4
X6 Same as X4
X7 Same as X0 plus dial tone and busy
signal detection
Y_ Y0 Modem does not send or respond to
break signals
Y1 Modem sends break signal for four
seconds before disconnecting
Z_ Z0 Reset and retrieve active profile 0
Z1 Reset and retrieve active profile 1
3.4 Extended AT Commands
&C_ &C0 Force Carrier Detect Signal High (ON)
&C1 Turn on CD when remote carrier is
present
&D_ &D0 Modem ignores the DTR signal
&D1 Modem returns to Command Mode after

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DTR toggle
&D2 Modem hangs up, returns to the
Command Mode after DTR toggle
&D3 Resets modem after DTR toggle
&F_ &F Recall factory default configuration
&G_ &G0 Guard tone disabled
&G1 550 Hz guard tone
&G2 1800 Hz guard tone
&K_ &K0 Disable flow control
&K3 Enable RTS/CTS hardware flow
control
&K4 EnableXON/XOFFsoftwareflowcontrol
&L_ &L0 Modem is set up for dial-up operation
&M_ &M0 Asynchronous operation
&S_ &S0 Force DSR Signal High (ON)
&S1 DSR offincommandmode,on in on-line
mode
&T_ &T0 Ends test in progress
&T1 Perform Local Analog Loopback Test
&T3 Perform Local Digital Loopback Test
&T6 PerformaRemoteDigitalLoopbackTest
&V &V0 Displays Active Profile
&W_ &W0 Stores the active profile as Profile 0
&W1 Stores the active profile as Profile 1
&Y_&Y0 Configuration Profile 0 active upon
Power on or reset
&Z n =x n =0-3 Store phone number xinto non-volatile
RAM
%E_ %E0 Disable auto-retrain
%E1 Enable auto-retrain
%X_ %X0 Disable re--dialing suppression
%X1 Enables re-dialing suppression
#CID=n n=0 Disable Caller ID
n=1 Enables Caller ID with formatting (date,
time, number, name)
n=2 Enables Caller ID without formatting
#CID? Displays current Caller ID mode
#CID=? ReturnsCallerIDcapabilitiesofmodem.
3.5 MNP/V.42/V.42bis Commands
%C_ %C0 Disable MNP Class 5 and V.42bis data

11
compression
%C1 Enable MNP Class 5 data compression
only
&Q_ &Q0 Direct data link only (same as \N1)
&Q5 V.42 data link with fallback options
&Q6 Normal data link only (same as \N0)
\A_ \A0 64-character maximum MNP block size
\A1 128-character maximum MNP block
size
\A2 192-charactermaximumMNPblocksize
\A3 256-charactermaximumMNPblocksize
\Bn Send a 1/10 second line break to the modem,
wheren=1 to 9.Atnormal connect,thedefault
is 3
\J_ \J0 DTE speed is independent of modem
connect speed
\J1 DTEspeedmatchesthemodemconnect
speed
\Kn Set break control, where n= 0 to 5. The effect of
this command depends on the modem’s
operating condition. Default is 5.
\N_ \N0 Normal data-link only
\N1 Direct data-link only
\N2 MNP data link only
\N3 V.42/MNP/Normal data link
\N4 V.42 data link only
\N5 V.42/MNP/Normal data link
\N7 V.42/MNP/Normal data link
\Q_ \Q0 Disable flow control
\Q1 XON\XOFF flow control
\Q3 RTS\CTS flow control
\T n Inactivity timer (n=0-255 minutes)
\V_ \V0 Disable error correction protocol result
code
\V1 Enableerrorcorrectionprotocolresult
code
\V2 Enable error correction protocol result
code
\X_ \X0 If XON/XOFF flow control is enabled,
do not pass XON/XOFF to remote
modem or local DTE
\X1 If XON/XOFF flow control is enabled,

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pass XON/XOFF to remote modem or
local DTE
-C_ -C0 Data calling tone disabled
-C1 Data calling tone enabled
3.6 Fax Class 1 Commands
+FCLASS? Service class indication
+FCLASS=? Service class capabilities
+FCLASS=n Service class selection
+FMI=? Manufacturer identification
+FMM=? Product Identification
+FMR=? Version/Revision information
+FRH=n Receive data with HDLC framing
+FRH=? Receive HDLC data modulation
+FRM=n Receive data
+FRM=? Receive FAX modulation
+FRS=n Receive silence
+FTH=n Transmit data with HDLC framing
+FTH=? Transmit HDLC data modulation
+FTM=n Transmit data
+FTM=? Transmit FAX modulation
+FTS=n Stop transmission and wait
3.7 Fax Class 2 Commands
+FAA=n Adaptive Answer
+FAXERR Fax Error Value
+FBOR Phase C Data Bit Order
+FBUF? Buffer Size
+FCFR Indicate Confirmation to Receive
+FCLASS= Service Class
+FCON Facsimile Connection Response
+FCIG Set the polled station identification
+FCIG: Report the polled station identification
+FCR Capability to Receive
+FCR= Capability to Receive
+FCSI: Report the Called Station ID
+FDCC= DCE Capabilities Parameters
+FDCS: Report Current Session
+FDCS= Current Session Results
+FDIS: Report Remote Identification
+FDIS= Current Sessions Parameters
+FDR Begin or Continue Phase C Receive
Data
+FDT Data Transmission

13
+FDTC: Report the polled station capabilities
+FET: Post Page Message Response
+FET=n Transmit Page Punctuation
+FHNG Call Terminations with Status
+FK Session Termination
+FLID= Local ID String
+FLPL Document for polling
+FMDL? Identify Model
+FMFR? Identify Manufacturer
+FPHCTO Phase C Time Out
+FPOLL Indicates polling request
+FPTS: Page Transfer Status
+FPTS= Page Transfer Status
+FREV? Identify Revision
+FSPL Enable polling
+FTSI: Report the Transmit Station ID
3.8 SVD Commands
-SAC Accept Data mode request
-SCD= Capabilities data
-SDA Start modem data mode
-SDT Date
-SEM Erase message
-SER? Error reporting
-SFA Facsimile data mode event message
-SFX Start facsimile data mode
-SIC Resetcapabilitiesdatatodefaultsettings
-SIP Initialize Voice View parameters
-SMD Modem data mode event message
-SMS=X,Y,Z,T Select ASVD/DSVD Mode. The X
parameterselectsdata,ASVD,DSVDor
automatic mode where 0=Data mode;
1=DSVD mode; 2=ASVD mode;
3=automaticmodeselect(default).Y,Z,T
are optional parameters to control
connection speeds.
-SMT Telephone handset mute control
-SNO Notification timer
-SOR Reject or overflow system messages
-SQQ Start capabilities query
-SQR=n Capabilities query response control
-SQS=X,Y Select ASVD modulation. Parameter X
selects the modulation mode where
0=V.61; 1=ML144; 2=ML288. The Y
parameter enables/disables ASVD
automatic modulation

14
-SRM Retrieve message
-SSE=n n=0 Disable DSVD
n=1 Enable DSVD
-SSP Set transmission speeds
-SSR Start sequence response control
-SSV Data mode event message
-STM Time
-STT Telephone handset transaction tone
control
-SVV Start Voice View data mode
Section Four - S Registers
Your modem has 28 registers, designated S0
through S92. Table 4-1 shows the registers, their
functions,andtheirdefaultvalues.Someregisterscan
havetheir values changedby commands.If you usea
command to change a register value, the command
remainsineffectuntilyouturnofforresetyourmodem.
Your modem then reverts to the operating character-
istics specified in its non-volatile memory. Refer to
Section 3 for information on how to use the AT com-
mands to manipulate the S registers.
Table 4-1 S - Registers
Register Function Range/units Default
S0 Auto-answer Ring 0-255 /rings 0
S1 Ring counter 0-255 /rings 0
S2 Escape code character 0-127 /ASCII 43
S3 Carriage returncharacter 0-127 /ASCII 13
S4 Line feed character 0-127 /ASCII 10
S5 Backspacecharacter 0-32, 127 /ASCII 8
S6 Dial tone wait time 2-255/seconds 2
S7 Remote carrier wait time 1-255/seconds 50
S8 Comma pause time 0-255 /seconds 2
S10 Carrier loss time 1-255 /0.1 second 14
S11 Touch-tonedialing speed 50-255/milliseconds 95
S12 Escape character guard time0-255 /0.02 second 50
S14 Result codes, pulse dial Bit mapped 8
S21 DTR, DCD Bit mapped 48
S22 Result codes, pulse dial Bit mapped 112
S24 Sleep mode timer 0,5-255/seconds 10
S28 V.34 modulation enable 0-255 1
S30 Inactivity timer 0-255/minutes 0
S32 Synthetic ring volume - dB 10
S33 Synthetic ring frequency 0-5 0
S35 Data calling tone enable 0, 1 0
S36 Negotiationfailure fallback 0-7 7

15
S37 Connectionspeed 0-19 0
S38 56K dial line rate 0-16 1
S42-43 Reserved
S48 LAPMnegotiation 7, 128 7
S89 Sleep mode timer 0, 5-255 seconds 10
S90 Local phone status 0=on hook, 1=off hook
S92 Transmitlevel 6-15/dB 15
Section Five - Result Codes
OK 0 CONNECT 1
RING 2 NO CARRIER 3
ERROR 4 CONNECT 1200 5
NO DIALTONE 6 BUSY 7
NO ANSWER 8 CONNECT 300 EC* 40
CONNECT 2400 EC* 10 CONNECT 4800 EC* 11
CONNECT 9600 EC* 12 CONNECT 7200 EC* 24
CONNECT 12000 EC* 25 CONNECT 14400 EC* 13
CONNECT 16800 EC* 86 CONNECT 19200 EC* 14
CONNECT 31200 EC* 83 CONNECT 21600 EC* 55
CONNECT 24000 EC* 56 CONNECT 26400 EC* 57
CONNECT 28800 EC* 58 CONNECT 31200 EC* 59
CONNECT 32000 EC* 70 CONNECT 33600 EC* 60
CONNECT 34000 EC* 71 CONNECT 36000 EC* 72
CONNECT 38400 EC* 28 CONNECT 38000 EC* 73
CONNECT 40000 EC* 74 CONNECT 42000 EC* 75
CONNECT 44000 EC* 76 CONNECT 46000 EC* 77
CONNECT 48000 EC* 78 CONNECT 50000 EC* 79
CONNECT 52000 EC* 80 CONNECT 54000 EC* 81
CONNECT 56000 EC* 82 CONNECT 57600 EC* 18
CONNECT 58000 EC* 83 CONNECT 60000 EC* 84
CONNECT 115200 EC* 87
* EC denotes one of the following extensions depending on the
error control method used when extended result codes are
enabled.
V42bis - V.42 error correction and B.42bis data compression
V42 - V.42 error correction only
MNP 5 - MNP Class 4 error correction and MNP Class 5 data
compression
MNP 4 - MNP Class 4 error correction only
NoEC - Error correction is off
Section Six - Troubleshooting
This section describes some of the common
problemsyoumayencounterwhileusingyourmodem.
If you can not resolve your difficulty after reading this
chapter, contact your dealer or vendor for assistance.
Modem does not respond to commands.
1. Make sure the communication software is configured

16
to“talk”tothemodemonthecorrectCOMportandIRQsetting(sameCOMportandIRQsettingasthemodem).Yourcommunicationsoftwaremustknowwhichaddressyourmodemisusinginthesysteminordertopassdatatoit.Similarly,IRQsettingsmustbesetcorrectlytoreceivedatafromthemodem.
2.Makesurethatyourmodemisinitializedcorrectly.Yourmodemmayhavebeeninitializedtonotdisplayresponses.Youmayfactory-resetthemodembyissuingAT&FandpressENTER.Thefactorydefaultallowsthemodemtodisplayresponsesafteracommandhasbeenexecuted.
Modemdoesnotdial.
1.Makesurethemodemisconnectedtoaworkingphoneline.Replacethemodemwithaworkingphonetoensurethatthephonelineisworking.
2.Makesurethephonelineisconnectedtothejackmarked“LINE.”Incorrectconnectionpreventsthemodemfromoperatingproperly.RefertoSection2.3formodemconnectioninstructions.
Modemdialsbutdoesnotconnect.
1.MakesuretheIRQsettingisidenticalonboththemodemandthesoftware.Modemandsoftwaremustbeconfiguredidentically.
2.Makesurethephonelineisworkingproperly.Replacethemodemwitharegularphoneanddialthenumber.Ifthelinesoundsnoisy,youmayhavedifficultyconnectingtotheremotedevice.
Modemmakesaconnectionbutnodataappearsonyourscreen.
1.Makesurethecorrectdataformat(databits,stopbits,andparitybits)andflowcontrol(RTS/CTS)arebeingused.
2.Makesurethecorrectterminalemulationmodeisbeingused(seecommunicationsoftwaremanual).
Highpitchtoneisheardwheneveryouanswerthephone.
1.MakesureAuto-Answeristurnedoff.YourmodemisfactoryconfiguredtoNOTauto-answer.IssueAT&Ftofactoryresetyourmodem.
Modemexperienceserrorswhilecommunicatingwitharemotemodem.
1.MakesuretheDTEspeedisthesameasthemodemconnectionspeedwheninDirectMode.
2.Makesuretheremotesystemandyourmodemusethesamecommunicationparameters(speed,parity,etc.).
3.MakesureRTS/CTShardwareflowcontrolisenabledandXON/XOFFsoftwareflowcontrolisdisabledinthecommunicationsoftware.
4.Makesurethedataspeedisnotfasterthanyourcomputer'scapability.MostIBMcompatiblesarecapableof19,200bpsunderDOSandWindows3.X.OperatingathigherspeedsunderWindowsrequiresa486orfasterCPUorWindows95.
Modemexperiencesburstsoferrorsorsuddenlydisconnectswhilecommunicatingwitharemotemodem.
1.MakesureCallWaitingisturnedoff.
2. Make sure the phone line does not exhibit excess
noise.
Section Seven - Support and Service
In the unlikely event you experience difficulty in
theuseofthisproduct,wesuggestyou:(1)consultthe
Troubleshooting section of this guide and (2) consult
with your dealer. To obtain service for this product,
follow the Return Merchandise Authorization Proce-
dure as outlined in the Warranty card.
Appendix A - Specifications
Communication Std. K56Plus (56Kbps), V.34,
V.32bis, V.32, V.29, V.27ter,
V.22bis, V.23, V.22, V.21, V.17,
Bell212/103
Data Compression: V.42bis/MNP5
Error Correction: V.42/MNP2-4
Host Interface: 16 bit PC bus

17
COMports:1,2,3,4
IRQ lines: 3, 4, 5, 7, 9, 10, 11, 12, 15
FAX Group: Group III Send/Receive
Standard
FAX Command set: EIA/TIA-578 Service Class 1,
EIA/TIA-SP2388 Service Class
2
Transmit level: -11 dBm +/- 1 dB
Receiver Sensitivity: -39 dBm (V.34); -43 dBm (all
other protocols)
UART: 16550 compatible
Data format: 300-115200 bps
Power: 0.75 W
Temperature:0to55degreesC(Operating)
Caller ID: Yes
PnP: Revision 1.0a
Speakerphone: Full-duplex with DSP echo
cancellation
Appendix B - Notices
FCC Compliance
This equipment complies with Part 68 of the FCC Rules. On
this equipment is a label that contains, among other informa-
tion, the FCC registration number and Ringer Equivalence
Number (REN) for this equipment. You must, upon request,
provide this information to your telephone company.
If your telephone equipment causes harm to the telephone
network, the Telephone Company may discontinue your
service temporarily. If possible, they will notify in advance.
But, if advance notice is not practical, you will be notified as
soon as possible. You will be informed of your right to file a
complaint with the FCC.
Your telephone company may make changes in its facilities,
equipment,operations,orproceduresthatcouldaffectproper
operation of your equipment. If they do, you will be notified in
advance to give you an opportunity to maintain uninterrupted
telephone service.
The FCC prohibits this equipment to be connected to party
lines or coin-telephone service.
In the event that this equipment should fail to operate
properly, disconnect the equipment from the phone line to
determineifitiscausingtheproblem.Iftheproblemiswiththe
equipment, discontinue use and contact your dealer or ven-
dor.

18
TheFCCalsorequiresthetransmitterofaFAXtransmissionbeproperlyidentified(perFCCRulesPart68,Sec.68.381(c)(3)).
FCCClassBStatement
ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttoPart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates,usesandcanradiateradiofrequencyenergy,andifnotinstalledandusedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,theuserisencouragedtotrytocorrecttheinterference
byoneormoreofthefollowingmeasures:
•Reorientorrelocatethereceivingantenna
• Increase the separation between the equipment and the
receiver
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected
• Consult the dealer or an experienced radio / TV technician
for help
Notice: 1) Shielded cables, if any, must be used in order to
comply with the emission limits. 2) Any change or modifica-
tion not expressly approved by the Grantee of the equipment
authorization could void the user’s authority to operate the
equipment.
DOC Compliance Information
NOTICE: The Canadian Department of Communications
label identifies certified equipment. This certification means
that the equipment meets certain telecommunications net-
work protective, operational and safety requirements. The
Departmentdoesnotguaranteetheequipmentwilloperateto
the user’s satisfaction.
Before installing this equipment, users ensure that it is
permissible to be connected to the facilities of the local
telecommunications company. The equipment must also be
installed using an acceptable method of connection. The
customer should be aware that compliance with the above
conditions may not prevent degradation of service in some
situations.
Repairs to certified equipment should be made by an autho-
rized Canadian maintenance facility designated by the sup-
plier. Any repairs or alterations made by the user to this
equipment, or equipment malfunctions, may give the tele-
communications company cause to request the user to
disconnect the equipment.
Users should ensure for their own protection that the electri-
cal ground connections of the power utility, telephone lines
and internal metallic water pipe system, if present, are
connected together. This precaution may be particularly
important in rural areas.
Caution: Users should not attempt to make such connec-
tions themselves, but should contact the appropriate electric
inspectionauthority,orelectrician,asappropriate.