Actiontec electronic V.90 ISA User Manual

™

V.90 ISA Plug n' Play

Voice/Fax Modem

User's Manual

Table of Contents

Proprietary Notice and Disclaimer .................................................................2

Introduction ........................................................................................... 3

Contacting Actiontec Customer Support ............................................ 3

Before Y ou Begin ................................................................................... 4

For Windows 95/98 Installation...................................................................... 4

For Windows NT 4.0 Installation ....................................................................5

Installing The Modem ............................................................................ 6

Hardware Installation..................................................................................... 6

Connecting Devices to the Modem................................................................8

Configuring Windows 95................................................................................9

Configuring Windows 95 OSR2...................................................................11

Configuring Windows 98..............................................................................14

Configuring Windows NT 4.0 .......................................................................19

Installing Communications Software.................................................24

T roub leshooting...................................................................................25

Appendix A: Non Plug-N-Play Installations....................................... 29

COM Ports and Interrupts............................................................................ 29

Jumper Settings........................................................................................... 3 0

Installing In DOS and Windows 3.1x ........................................................... 32

Hardware and Driver Installation ................................................................. 32

Appendix B: AT Command Set ........................................................... 34

AT Commands .............................................................................................34

AT Commands for Testing and Debugging ..................................................58

S-Registers Reference ................................................................................60

Appendix B: Communications Regulations ...................................... 71

Proprietary Notice and Disclaimer

Unless otherwise noted, this document and the information herein disclosed are proprietary
to Actiontec Electronics, Inc. Any person or entity to whom this document is furnished or
who otherwise has possession thereof, by acceptance agrees that it will not be copied or
reproduced in whole or in part, nor used in any manner except to meet the purposes for
which it was delivered.

The information in this document is subject to change without notice and should not be
construed as a commitment by Actiontec. Although Actiontec will make every effort to in­form users of substantive errors, Actiontec disclaims all liability for any loss or damage result­ing from the use of this document or any hardware or software described herein, including
without limitation contingent, special or incidental liability.

PC is a trademark of IBM Corporation. Windows 3.1, Windows 95, Windows 98, and Windows NT are trademarks of
Microsoft, Inc. K56flex is a trademark of Lucent Technologies, Inc. and Rockwell International.

2

Introduction

Thank you for purchasing the Actiontec 56K V.90 ISA Master fax/modem. The
Master supports all of the features most desired by personal computer fax modem
users. It is an ITU-T V.90 Standard Compliant modem yet maintains backward
compatibility with the existing K56flex protocol. The modem also incorporates ISA
PnP (Plug-N-Play) capability yet still has the option to manually select a COM port
and IRQ using hardware jumper settings. A controller-based modem, it can operate
in a wide variety of PC compatible computers and operating systems.

Controller based modems, as opposed to host-based modems or Windows Modems,
contain all of the hardware they need to operate without having to rely on your
computer’s internal Central Processing Unit (CPU) to perform some or all of their
functions. The modem accepts commands or data from your computer and processes
them entirely within its internal circuitry. This results in a modem that can be in­stalled in the widest range of operating systems.

The 56K ISA Master has a user programmable feature. When new firmware (the
commands that make the modem work) becomes available, the user simply down­loads the update utility from the website and reprograms the modem.

Contacting

Actiontec Electronics prides itself on making high-quality , durable, high-performance
products. If you should need assistance, the Actiontec T echnical Support Department
is available from 7:00 AM to 7:00 PM Pacific Coast Time, Monday through Friday
to provide professional support.

Actiontec Electronics, Inc. Phone: [phone] (choose option 7)
Technical Support Fax: [phone]
760 N. Mary Avenue BBS: 408-732-0112
Sunnyvale, CA 94086 Email: [e-mail]

New drivers are released as need arises to insure maximum compatibility and opera­tion of your new modem. Find out about these and other new A ctiontec products at
the Actiontec web site:

Action

http://www.actiontec.com

tec Customer Support

3

Before Y ou Begin

For Windows 95/98 Installation

If you are replacing an existing modem in your computer system with this modem,
be sure to remove all other modem drivers. On the desktop, right-click the M y Com-

puter icon and choose Properties. Select the Device Manager tab. Double-click the
Modems icon in the list of device groups to show the modems installed. Highlight

each modem listed by clicking once on the icon next to the modem and then click the
Remove button. It is also a good idea to physically remove your old modem from the
system. Once you remove the old modem and its drivers from your system, you will need
the old modem driver diskette if you wish to reinstall it at a later date.

Figure 1: Windows 95 Modems Properties Panel

If you are going to use the Telephone Answering Machine (TAM) functions of the
modem, you need to install the Unimodem V components of Windows 95. If you
have Windows 95 OEM Service Release 2 (Version 4.00.950 B or above) you do not
need to install this component as it is already built into this version of Windows.

To find what version of Windows 95 you are running, right-click on the My Com-
puter icon and choose P roperties. Select the General tab . If the version of Windows
95 is 4.00.950 or 4.00.950A, on the taskbar, click Start, click Programs, then select
Windows Explorer. Go to the UNIMODEM directory of the modem’s installation
CD-ROM (the UNIMODEM driver is sometimes supplied on a separate floppy)

4

that came with your modem and right-click on UNIMODV.INF (or UNIMODV,
whichever is displayed) then click Install. Restart your computer to enable the driv­ers.

For Windows NT 4.0 Installation

If you are replacing the current modem in your computer system with this new mo­dem, be sure to remove all other modem drivers from your operating system. On the
taskbar, click Start. On the start menu click Settings, then click Control Panel and
double-click the Modems icon. Highlight the modem you wish to remo ve and click
Remove. Turn off the computer and physically remove the old modem. Do not in­stall your new modem at this time. Follow the procedures below to help insure a
trouble-free installation. Once you remove the old modem and its drivers from your

system, you will need the old modem driver diskette if you wish to reinstall it at a later
date.

Do not use the Plug-N-Play capabilities of the modem for a Windows NT installa­tion. Instead, manually set the modems jumpers to COM 2-IRQ 3. (See the “Install­ing The Modem” section of this manual.) This setting will require that you disable
your computer’s on-board serial port.

To disable COM 2, boot your system and enter your BIOS setup. You can normally
invoke the BIOS setup menu by pressing a key or a combination of keys early in the
start-up process. Some of the common keys are DELETE, F1, F2, CTRL+ALT+S,
CTRL+ALT+ESC. If none of the mentioned key combinations work, please refer to
your computer system manual for instructions on how to invoke the BIOS setup.
(Note: if your system uses a separate I/O Card, use the card’s jumpers to disable a
COM port.) Once inside the BIOS setup, find the menu for integrated peripherals,
locate the COM port settings, then disable COM2 or Comport B. If unsure, please
consult your computer’ s user manual. Save these settings befor e exiting the BIOS Setup.
The computer will then reboot.

You are now ready to install the modem. Proceed to the next section.

5

Installing The Modem

Always discharge static electricity before handling your modem. You
may discharge static electricity by touching a grounded metal structure
or by using any commercially available grounding strap.

Make sure the expansion slot type is 16-bit, which has two slots to fit the
ISA card. 8-bit slots have only one connector. If you use an 8-bit slot,
the modem will not have access to the higher interrupts (IRQ 9-12).

The position of the expansion slots in your computer may differ from
the illustration shown but the installation procedure should be the same.

Hardware Installation

1. Turn off the computer and all peripheral devices connected to it.

2. Unplug the computer power cord from the wall receptacle.

3. Remove the computer’s cover. Refer to your computer owner’s manual for in­structions.

4. Remove the screw securing the expansion slot co ver behind one of the computer’ s
available 16-bit ISA expansion slots. Lift the expansion slot cover out as shown
below.

Figure 2: Removing the Bac kplate

6

5. Firmly, but gently, insert the modem into the available 16-bit expansion slot.
Ensure that the card is seated properly before securing it with the screw removed
in Step 4, as shown in the following diagram.

Figure 3: Installing The Modem

6. Put the chassis co ver back on the computer.

7. Be sure that all power switches are in the OFF position, then reconnect the
power cables to the computer and its peripherals.

8. Connect the telephone line cable to the Line (Telco) jack as shown in figure 4.

9. Turn on the computer and proceed to the following sections to configure your
modem to the operating system you are using.

7

Connecting Devices to the Modem

Figure 4: Connecting Devices

On the rear panel of your modem are input jacks to connect devices to the modem.
As shown in the diagram, there are jacks for connection to a “ phone ” and to a phone
“line.” The connector labeled “Line (Telco)” is meant to be connected to a standard
analog phone line. To help reduce the load on your phone line, it is recommended
that all other devices be disconnected while the modem is in use.

8

Configuring Windows 95

Step 1 Upon start-up, Windows 95 detects the modem and displays the New Har d-

ware Found dialog box. Select “Driver from disk provided by hardware

manufacturer” then Click OK.

Step 2 Insert the diskette containing the modem ’ s Windo ws 95 .INF files and click

OK

Step 3 If Windows asks for an installation disk, click OK and type A: in the dialog

box that appears and click OK again.

Step 4 After the installer has copied the .INF files to the hard disk, a New Hard-

ware Found dialog box should appear prompting for the “W ave Device for
Voice Modem”. Click OK. (See “Do This First” for information on
UNIMODEM.INF if this screen does not appear).

9

Step 5 Click OK to copy the Wave Device .INF file from the CD-ROM drive to

the hard drive. Windows 95 may request its own installation diskettes for
some files. Insert the Windows 95 disks or CD-ROM as required.

Step 6 To determine what COM port and IRQ is assigned to the modem in Win-

dows 95, click on the Modems icon in Control Panel and click the Diag-
nostic tab. Click on the COM P ort icon and then on the More Info button
to view the modem properties.

10

Configuring Windows 95 OSR2

Step 1 On start-up Windows 95 will detect the modem and launch the Update

Device Driver Wizard dialog box. Insert the modem ’ s Installation CD-R OM,

wait about 10 seconds so that the CD-ROM can be read by the drive, and
click Next.

Step 2 After Windows 95 has found the updated drivers for your modem, click

Finish.

11

Step 3 After the Wizard has copied the .INF files to the hard disk, it should detect

“Wave Device for Voice Modem” and prompt for its driver. Click Next.

Step 4 Click Finish to copy the Wave Device .INF file from the A:\ drive to the

hard drive. Windows 95 may request its own installation diskettes for some
files. Insert the Windows 95 disks or CD-ROM as required.

12

Step 5 To determine what COM port and IRQ is assigned to the modem in Win-

dows 95, click on the Modems icon in Control P anel and select the Diag-
nostics tab. Select your modem and then click on the More Info button to
view the modem properties.

Step 6 Remember this COM port number. When you install your Data/F ax soft-

ware or internet browser program, you may need to set your modem port
location to this same number.

13

Configuring Windows 98

Step 1 After you have installed the modem hardware in your computer, plug the

computer back into the wall outlet. Turn on the power and allow the system
to boot normally.

Step 2 Windows 98 will immediately display the Add New Hardware W izard and

identify the modem as a “56K V.90 Fax/Modem (LKT)”. Click the Next
button.

Step 3 At the next dialog box, make sure that “Search for the best driver for your

device. (Recommended)” is selected, and then click Next.

14

Step 4 Next the wizard will ask which drives or folders it should search for the

drivers. Click to select CD-ROM drive. Make sure that all the other op­tions are deselected, clicking them to deselect, if necessary . Insert the modem ’ s
installation CD-ROM. Wait about 10 seconds, so that the CD-ROM drive
can read the disc, and click Next.

Note: After inserting the CD-ROM, make sure to wait a few seconds before
clicking Next. Otherwise, the Wizard may r eport that it was unable to find
the drivers. If this is the case, click Back and then click Next, repeating this
process until the CD-ROM drive has read the CD-ROM, displaying the
dialog box shown in step 5.

Step 5 The Wizard will find the correct driver on the CD-ROM and identify the

modem as “ISA PnP V.90 Fax Modem (LKT)”. Click Next.

15

Step 6 After Windows has finished copying the drivers to where they belong in

your system, it will announce the end of the installation process. Click the
Finish button.

Step 7 The Wizard will now search for drivers for the Telephone Answering Func-

tions (TAM) of the modem, also known as the “Wave Device for Voice
Modem”. Click Next.

16

Step 8 At the next dialog box, make sure that “Search for the best driver for your

device. (Recommended)” is selected, and then click Next.

Step 9 Next the wizard will ask which drives or folders it should search for the

drivers. Click to select CD-ROM drive. A check mark will appear in the
appropriate box. Make sure that all the other options are deselected, click­ing them to deselect, if necessary. Click Next.

17

Step 10 The Wizard will find the correct driver on the CD-ROM and identify the

device as a “Voice Modem Serial Wave Device”. Click Next

Step 11 After Windows has finished copying the drivers to where they belong in

your system, it will announce the end of the installation process. Click the
Finish button.

18

Step 12 Next, find out if the modem has been properly installed and configured for

use with your operating system. On the task bar, click Start. On the Start
menu, click Settings, then click Control Panel, then click M odems. Click
the Diagnostics tab. Click the COM port that the “ISA PnP V.90 Fax Mo­dem (LKT)” is using, to select it, then click More Info. Windo ws will com­municate with the modem for a few seconds, and then report back with the
information shown below. (The COM port being used may vary.)

Configuring Windows NT 4.0

This installation assumes that you have manually set the modem’s jumpers to a COM
2-IRQ 3 setting as outlined in the “Do This First” section at the beginning of the
manual. This is the preferred installation for Windows NT.

Step 1 Reboot the computer and log in to Windows NT 4.0.

19

Step 2 Click Start, then click Settings, then click Control Panel. Double-click on

the Modems icon. At the Modems Properties dialog box, click Add.

Step 3 An Install New M odem window will appear . Allow Windows NT to detect

your modem. Click Next.

20

Step 4 Windows NT will detect the modem as a “Standard Modem”. Click the

Change button.

Step 5 Insert the modem ’s installation CD-ROM and click the Have Disk button.

When prompted for the path, type the drive letter of your CD-ROM drive,
followed by a colon, and a backslash, then click OK.

21

Step 6 When prompted to select the manufacturer and model of the modem, se-

lect “AEI” for manufacturer and “ISA PnP V.90 Fax Modem (LKT)” for
model. Click the OK button. At the next dialog box click the Next button.

Step 7 Windows NT will report successful installation of the modem. Click Fin-

ish.

Step 8 Click on the Modems icon in the Control Panel. Verify that Windows NT

has correctly found the modem information like that shown below should
appear.

Step 9 If you wish to dial into a Windows NT Remote Access Server or wish to

connect to the Internet, you will need to configure Dial-up Networking. In
Control Panel double-click the N etwork icon. Click on the Services folder
and select Remote Access Service. If the Remote Access Service option is
not listed click on the Add button. Scroll-down the menu and select Re-
mote Access Service. Click the OK button. Windows NT may ask for its
CD-ROM for some files. Insert as required. After you have installed Re­mote Access Service add the appropriate protocols as directed (i.e. TCP/IP
for Internet Access).

22

Step 10 At the Remote Access Setup dialog box, click Add. Select the RAS Device

you wish to add and Click OK.
Step 11 Click Continue to finish the Installation.
Step 12 After Windows NT has completed the binding process, allow Windows

NT to shut down and restart the computer.

23

Installing Communications Software

If your modem came with a communications software package, it is strongly recom­mended that you use this software for your modem. It has been specially configured
to work with this modem. If communications software came with this modem, the
Users Guide for this software can be found on the installation CD-ROM.

If you wish to use another software package, please be sure that it supports this mo­dem. Most Software Manufacturers have a listing of supported modems on their
websites or BBSs. Check these sites to see if this model is supported. If you are unsure
or your brand of software supports only a few modems, try selecting “Hayes Com­patible” or “Standard Modem”. This may work in certain cases.
Some software programs allow manual input of parameters. For the users of these
programs, here is a listing of the Data/Fax/Voice Command Standards supported.

Data: TIA/EIA-602
Fax: TIA/EIA-578 for Class 1 Fax
Voice: TIA IS-101 support for TAD (Telephone Answering Device)
Init String: AT&F&C1&D2W2

TIA IS-101 Commands not supported:

Caller ID

Full Duplex Speakerphone

VoiceVie w
Note: some programs must be configured to communicate with the modem on the

same COM port and or IRQ setting used by the modem. See “Installing the Mo­dem” section for instructions on how to determine your COM Port and IRQ set­tings.

24

Troubleshooting

Most problems encountered during the Windows 95/98/NT installation process ar e
a result of inadequate system resources. If you skipped some of the recommended
preinstallation procedures outlined in the section of this manual titled “Do This
First”, return to the beginning of that section and carefully follow all steps outlined
for the operating system you are using. These steps have been thoughtfully chosen to
help minimize difficulties during the installation of the modem in Windows 95,
Windows 98, and Windows NT 4.0. Make sure to physically remo ve any previously
installed modems from your computer. This step alone can help prevent many po­tential problems from occurring.

If you have used the default Plug-N-Play jumper settings and the modem has in­stalled but is not functioning, try the troubleshooting procedure listed below. The
information provided by following these steps can help point the way to fixing your
difficulty.

Windows 95/98

Step 1: Check System Resour ces.

In Control Panel, double-click the System icon. Click the Device Manager tab. On
the list of devices, double-click the Modems icon to show what modems are installed.
If there is no Modems icon, your modem did not install (see the section of this
manual titled “Does not Install”). If your modem is listed, check that there is no
yellow exclamation mark or red “X” over the modem’s telephone icon (if there is, go
to Step 2). If any other modems are listed, highlight the modem by clicking once on
the telephone icon next to the listed modem and then click the Remove button.
Shutdown the system and turn off the power. Wait 5 seconds and turn your com­puter back on and repeat Step 1.

Step 2: Check Modem Properties.

In Device Manager, double-click the Modems icon in the device tree to show what
modems are installed. Highlight your modem by clicking once on the icon and then
click the Properties button. Read the Device Status on the General tab to see if the
device is working properly. Check the Device Usage box and make sure “Disable in
this hardware profile” is not selected (Windows 95 OEM SR2 only), or (for Win­dows 95 or 95A) the box labeled “Original Configuration, Current” has a check
mark.

Make a note of the COM port and IRQ the modem is using. If the Device Status box
shows some error message, it will generally be about a conflict. Go to the Resources

25

tab and read the Conflicting Device List. If a conflict is present, uncheck the box
“Use automatic settings” and select a configuration that does not cause conflicts.
Manually change the IRQ settings if needed (see your Windows 95 on-line help file
for a more detailed discussion on changing these settings). Click OK.

If there is no setting free of conflicts, go to the section of this manual titled “Does
Not Install.”

Step 3: Modem Diagnostics.

In Control Panel double-click the Modems icon. Your modem should be listed. If
any other modem is listed, click once on each old modem and then click the Remove
button. Turn off your computer , wait 5 seconds and turn the power back on. R eturn
to Control Panel and M odems and click the Diagnostics tab. H ighlight the modem
by clicking once on the COM Port icon next to its listing. Now click on the More
Info button. You should see the dialog box below.

Figure 5: More Info P anel

If you receive an error message or the panel is blank, go to the Does Not Install sec-
tion.

Step 4: Does Not Install.

The most likely reason for a non-installation in Windows 95 is a lack of IRQ re-

26

sources. The modem needs one IR Q and one COM Port in order to function. (Read
your computer user’s manual for information on how to invoke and use the BIOS
setup).

Inside your computer’ s BIOS Setup, find the Plug-N-Play configuration. This can be
found within a section titled “Advanced”, “PNP/PCI Configuration”, or “Plug and
Play Configuration” depending on the BIOS Manufactur er . Next, from the informa­tion you noted in Step 2, find the interrupt selection for the IRQ your modem is
using (some BIOS don’t allow individual selection of interrupts to ISA, Plug-N-Play ,
or PCI). You want to set this to a Plug-N-Play setting. This can be called ICU/PCI,
ISA, or PNP depending on your BIOS version and manufacturer. Do not set this
interrupt to “PCI” only or to “Legacy ISA”.

If you do not have any free interrupts available, you will have to disable some unused
function of your computer system. If you are using a PS/2 style mouse, you probably
can spare one of your internal COM Ports. To disable a COM Port, find the BIOS
Setup section for “Integrated Peripherals”. Locate the serial port settings and disable
an unused port that has nothing connected to it (usually serial port 2.) This should
free one IRQ for your modem to use. You may also have to disable the COM Port in
Windows 95.

Under some situations, you will find that freeing an interrupt does not solve your
installation difficulties. This could be due to another peripheral device stealing the
interrupt you just provided.

Certain full-featured sound cards require three IRQs to support all their functions.
This situation requires that you remove your sound card, make an interrupt avail­able, install the modem and verify its operation, and then reinstall the sound card.
This procedure may also work for sound cards that have lost their sound after the
modem has been installed or if the modem will not install in a system with a sound
card.

Common Problems

No Dialtone Error

Make sure you have connected the phone cable into the right connector on the back
of the modem. See Figure 7: Connecting Devices.

Y ou may have too many devices connected to the phone line. Remove all other equip­ment.

Your modem may not recognize overseas dialtone. Use the AT Command ATX0
(See Appendix B: AT Commands) to have the modem ignore the dialtone before
dialing.

27

Communications Software Does Not Work

Some communications software packages need to be configured to the same COM
Port and or IR Q as the modem. See “Installing the M odem” for information on how
to determine your COM Port and IRQ number.

The communications software you are using may not support this modem. See “In­stalling and Configuring Communications Software” section of this manual.

If you are trying to use different software that supplied with the modem (some mod­els of this modem may be shipped without communications software), try installing
the supplied software and verify its functionality with the modem.

Nothing Appears On The Screen When I Type in HyperTerminal

Issue the AT command ATE1 (see Appendix B: AT Commands) to the modem to
enable command echo. This will let you see what you type.

Can’t Connect at 56K

Note: Current FCC regulations limit your maximum connection rate to 53K bits/s.
The number you are calling may not support V.90 or K56flex protocols. Some ISPs

(Internet Service Providers) have special numbers that you must call to connect to
56K. Contact your service provider and ask if the number you are calling supports
V.90 or K56flex connections.

Check the maximum speed setting in the Modem Properties window. In Control
Panel, double-click the Modems icon. Highlight your modem by clicking once on
the icon next to your modem in the list, then click Properties. Select the General tab
and look at the setting in the Maximum speed box. Make sure this is set to 115200.

You may hav e other telephone devices connected to the phone line. To help your
modem achieve the best connection possible, remove all extra devices connected to
the telephone line when the modem is in use. This includes extension phones, an­swering machines, cordless phone bases, caller ID boxes, and their cables.

Keep the length of your phone line cable to 10 feet or less. Don’t lay your phone
cords close to an electrical appliance like a refrigerator or air conditioner unit. High
current devices can transmit a 60 cycle “hum” to your modem through the phone
cord. This may cause frequent renegotiations or line disconnects.

The telephone line conditions at the time of your call may not let you connect at
56K. The modem has a connection sequence of K56flex, then V.90, then V.34, and

28

so on. The modem attempts to make the highest connect rate that your telephone
line can support at the time of negotiation. If the line conditions (noise, telephone
company routing, etc.) won’t allow a high data rate connection, then the modem will
automatically connect at the most reliable rate. Try making the call again after a few
minutes.

If you are attempting to make a call from an office and you have to dial “9” to reach
an outside number, you are using a PBX. The modem cannot connect faster then
V.34 if you are using a PBX. If possible, try using the line that is connected to a fax
machine. Fax machines are usually not connected through the PBX.

Your phone line may not support a 56K connection or may support a 56K connec­tion only intermittently. Before a 56K connection can be established the telephone
company must have you connected to the Public Switched Telephone Network (PSTN)
in a particular way . The modem you are calling must also support 56K connections.
The phone line must also be free of distortion and noise. Check to see if you have
good voice communications over the line, while talking on a telephone normally.

Appendix A: Non Plug-N-Play Installations

In some cases, because of the operating system, type of motherboard, or BIOS you
are using, it is advisable to avoid attempting Plug-N-Play installations. Installing the
modem without utilizing the Plug-N-Play features (where those features are avail­able) of your computer and its operating system allows you to dictate the COM port
and interrupt that are used by the modem.

The 56K ISA Master facilitates installation on user-defined COM ports and IRQs
using jumpers on the modem card itself. (See Below.)

COM Ports and Interrupts

The modem will need one IRQ (also known as an interrupt) and one COM Port to
function. To check for any available interrupts, right-click the My Computer icon on
the desktop and choose Properties. Select the Device Manager tab. Click P roperties
to view the System Resources. There are 16 interrupts (number ed 0-15) available in
a system. Make a note of any interrupt not listed. If you do not have any free inter­rupts you may need to disable an existing device that you are not currently using,
such as COM2 on your motherboard. This will free up I/O port 0x2F8 and IRQ 3.

Disabling COM 2 or adjusting the Plug-N-Play settings is done from the BIOS
setup, You can normally enter the BIOS setup menu by pressing a key or a combina­tion of keys early in the start-up process. Some of the common keys are DELETE,
F1, F2, CTRL+ALT+S, CTRL+ALT+ESC. Often there will be a message like “P ress
F2 to enter Setup” displayed shortly after you turn the computer on. If none of the

29

mentioned key combinations work or no message is displayed while the computer is
starting up, please refer to your computer system manual for instructions on how to
enter the BIOS setup.

Once inside the BIOS setup, find the menu for integrated peripherals, locate the
COM port settings, then disable COM2 (Sometimes known as “Comport B” or
“Serial B”.) If unsure, please consult your computer’s user manual. Be sure to save
these settings before exiting the BIOS Setup. The computer will then restart. Set your
modem’s jumpers to COM 2-IRQ 3. (See the “Installing the Modem” section of this
manual for jumper setting diagrams.)

Next find and disable the Plug-N-Play settings in the BIOS. These settings can be
found within an “Advanced”, “PNP/PCI Configuration”, or “Plug and Play Con­figuration” section (depending on the BIOS Manufacturer.)

V erify that one free IR Q has been set so that the ISA bus has access to it. (Some BIOS
don’t allow individual selection of interrupts to ISA, Plug-N-Play, or PCI.) These
settings can be called ICU, ICU/PCI, or PNP depending on your BIOS version and
manufacturer. Do not set this interrupt to “PCI only.” Pay attention to the IRQ
usage of the other peripherals in your system. Do not reassign an interrupt that is
already in use by another device. Be sure to Save these settings before exiting the BIOS

Setup.

You may also need to disable the COM Port from the device manager. On the desk­top, right-click the My Computer icon and choose Properties. Select the Device
Manager tab. Double-click the P orts (COM & LPT) icon to expand the list of ports
and highlight Communication Port (COM2). Now click on the Properties button.
Click to select Disable in this hardware profile (Windows 95 OEM SR2 only) or
click to deselect Original Configuration (current) (Windows 95 or Windows 95A
only .) Exit Windows 95 and restart your system. N ote: If COM 3 and or COM 4 are
present and you have nothing installed on these ports, delete them first before delet­ing COM 2.

Proceed to the “Installing the Modem” section of this manual.

Jumper Settings

This modem has two sets of jumper blocks used for manual COM Port and IRQ
(interrupt) selection. Figure 6 shows the default jumper setting for JP1 and JP2 as
shipped from the factory. This setting is for “Plug-N-Play ” and will auto-configure in
computers with operating systems that support this feature, like Windows 95 and

98. When performing a non Plug-N-Play installation, the best choice for these set­tings is COM 2 IRQ 3.

30

Figure 6: Jumper s Set T o Plug-N-Pla y (default setting)

The Jumper Block JP1 is used to select the desired COM P o rt for the modem. Figure
7 shows the selections for each COM Port.

Figure 7: JP1 COM Port Options

Jumper Block JP2 is used to select the IRQ (interrupt request) settings for the mo­dem. Figure 8 details the possible selections.

Figure 8: JP2 IRQ (interrupt request) Options

31

Installing In DOS and Windows 3.1x

Because Windows 3.1x is not Plug-N-Play operating systems, a non-Plug-N-Play
installation is required. Manually select COM Port and IRQ settings you wish the
modem to use by changing the jumpers on the modem card itself. (The jumper
setting definitions can be found in the “Installing The Modem” section of this manual.)
It is recommended that you disable an existing COM P ort that you are not using and
set the modems jumpers for COM 2 -IRQ 3.

To disable one of your computer’s existing COM Ports, enter your System BIOS
Setup routine. (Refer to your computer’s user’s manual for instructions on how to
access the BIOS Setup.) Once inside the BIOS Setup, look for a section called “Inte­grated Peripherals.” Locate the entry for COM 2 or COM port B and disable it. Save
your settings before exiting. Install your modem and start Windows 3.1x.

If you have a separate I/O card, use the card’s jumpers to disable a COM Port. If you
cannot disable an existing COM Port, use COM Ports 3 or 4 and select an interrupt
that does not cause a conflict with another device.

Since you have manually selected the COM Port and IR Q settings using the jumpers
on the modem card, manually assign the same IRQ and COM Port settings in Win­dows. In the Windows 3.1x P rogram Manager , double-click M ain and then Control
Panel. Double-click P orts. Select the COM P ort your modem is using by clicking the
icon. Click Settings, then click Advanced. Select “3F8” for COM 1, “2F8” for COM
2, “3E8” for COM 3, or “2E8” for COM 4, depending on which COM Port you
selected your for your modem.

Next choose the appropriate IRQ for the COM port you have selected. If you have
set your modem to COM 2, then you would set the IRQ to 3. If you had chosen
COM 3, then you would have set the IRQ jumper on the modem to an available
IRQ setting, one that did not interfere with another device. You will need to set the
Windows IRQ setting to this same number. After you have configured Windows

3.1x, close Windows and reboot your system. Install your communications software.
Your modem is now installed, configured, and ready to use.

Hardware and Driver Installation

To perform a non-Plug-N-Play installation in Windows 95 or 98 proceed with the
following steps.

Step 1 Be sure to remove all other modem hardware and drivers. This should in-

clude removing these devices in Device Manager, as w ell as removing all

modems from the Modems control panel by selecting them and clicking

Remove.

32

Step 2 Install the modem hardware. (See the section of this manual entitled “Hard-

ware Installation ” for instructions on how to install the modem har dware.)

Make sure the computer is turned off and unplugged from the wall before

removing the cover. Refer to your computer’s owner’s manual for instruc-

tions on how to safely access the motherboard of your computer.
Step 3 T urn on the computer . Windows will not detect new hardwar e, because you

have disabled Plug-N-Play in the BIOS. In Windows 95, Windows 98, and

Windows NT, on the Start menu, click Settings, then click Control Panel,

then click Modems. Windows will probably report that no modem is in-

stalled and ask if it should search the system for newly installed modem

hardware. If, instead, an empty Modems control panel is displayed, click

Add. In either case, follow the on screen instructions. (If no modem is de-

tected, in Control Panel, double click Add N ew Hardwar e and have it search

to add a COM port. When this is done, go back to modems and click Add.)

Note: Steps 3 through 7 under “Configuring Windows NT” outline the

procedure for making sure the correct driver (INF) file gets installed for this

modem. It is possible for Windows to install this modem as a “Standard

Modem ” without using the driver file that came with your modem, but this

should be avoided. If the correct driver is not installed, the full features of

the modem will not be available. Follow carefully the steps for configura-

tion of NT mentioned above.
Step 4 After driver installation is complete, make sure that the modem is installed

correctly

33

Appendix B: AT Command Set

AT Commands

AT commands are issued to the modem to control the modem’s operation and soft­ware configuration. AT commands are commonly entered from a terminal program
such as HyperTerminal, and can only be entered while the modem is in command
mode. To enter an A T command, type:

ATXn

where X is the AT command, and n is the specific value for that command. Press
ENTER.

Commands are acknowledged with either text or numeric value response known as a
result code. In the case of multiple AT commands on the same command line, the
commands are executed in the order they are received. Should execution of a com­mand result in an error, or a character not be recognized as a valid command, execu­tion is terminated, the remainder of the command line is ignored, and the ERROR
result code is issued. If all commands execute correctly, only the result code associ­ated with the last command shall be issued, even though all have been executed.

In the following listing all commands and command values accepted by the modem
are shown. Any entries other than those shown cause the ERROR result code.

+++ Escape sequence

The escape sequence allows the modem to exit data mode and enter on-line com­mand mode. While in on-line command mode, you may communicate directly to
your modem using AT commands. Once you are finished, you may return to data
mode using the ATO command. A pause, the length of which is set by the Escape
Guard T ime S-Register (S12--S ee the “S-Registers R eference ” section of this manual
for details), must be used after an escape sequence is issued. This pause prevents the
modem from interpreting the escape sequence as data. The value of the escape se­quence character may be changed using Register S2.

A/ Repeat Last Command

This command repeats the last command string entered. Do not precede this com­mand with an AT prefix or conclude it by pressing Enter.

A Answer Command

This command instructs the modem to go off-hook and answer an incoming call.

34

Bn Communication Standard Setting

This command allows you to choose between CCITT and Bell standard.

dnammoCtceffE

0B

1B

2B.)3Bsaemas(lennahcesrever32VstcelesnU

3B.)2Bsaemas(lennahcesrever32VstcelesnU

51B.s/stib003tasimedomehtnehw12.VstceleS

.s/stib

.)tluafed(

0021tasimedomehtnehwedom22.VTTICCstceleS

s/stib0021tasimedomehtnehwA212lleBstceleS

61B

.)tluafed(

s/stib003tasimedomehtnehwJ301lleBstceleS

Result Codes:

KO61,51,1,0=n

RORREesiwrehtO

Cn Carrier Control

The modem will accept the C1 command without error in order to ensure backward
compatibility with communications software that issues the C1 command. However ,
this modem does not support the C0 command. The C0 command may instruct
some other modems to not send a carrier, in effect putting them in a receive-only
mode.

dnammoCtceffE

0C.ffosyawlareirractimsnarT

1C.gnihctiwsreirractimsnartlamroN

Result Codes:

KO1=n

RORREesiwrehtO

35

Dn Dial

This command instructs the modem to begin the dialing sequence. The dial string
(n, including modifiers and the telephone number) is entered after the ATD com­mand.

A dial string can be up to 40 characters long. Any digit or symbol (0-9, *, #, A, B, C,
D) may be dialed as touch-tone digits. Characters such as spaces, hyphens, and pa­rentheses do not count, they are ignored by the modem and may be included in the
dial string to enhance readability.

The following characters may be used as dial string modifiers:

gniwollofretcarahctsrifehtebdluohS.rebmuntsalslaideR

L

.delaidrebmuntsal

P).tluafedsaeslupottesgnilaiD.xxxPDTA.g.e(.gnilaidesluP

gnirtsgnilaidehtsyalpsidmedomehT.esiwrehtoderongi,DTA

ehtsixxxxxxxerehwxxxxxxxgnilaiD:tamrofgniwollofehtni

T

,

W

@

!

;

^.noissimsnartenotgnillacatadelbasiD

n=S

$.noitcetedenotgnoB

).tluafedsa

enotottesgnilaiD.xxxTDTA.g.e(.)tluafed(gnilaidenot-hcuoT

8SretsigeRnideificepsemitrofesuaP.gnilaidgnirudesuaP

.gnirtslaidehtniretcarahctxenehtgnissecorperofeb

erofebenotlaiddnocesarofstiawmedoM.enotlaidroftiaW

.gnirtslaidehtgnissecorp

retfaecnelisfosdnocesevifroftiaW.rewsnateiuqroftiaW

sdnesmedomeht,detcetedtonsiecnelisfI.rebmunehtgnilaid

.resuehtotkcabedoctluserREWSNAONa

sdnoces5.0rofkooh-noogotmedomehtsesuaC.hsalfkooH

.kooh-ffootnruternehtdna

otnruterotmedomehtsesuaC.edomdnammocotnruteR

gnitcennocsidtuohtiw,rebmunehtgnilaidretfaedomdnammoc

.llaceht

x=nZ&ehtgnisuderotsylsuoiverprebmunenohpeletalaiD

.)noitamrofnirehtrufrofdnammocx=nZ&ehtees(dnammoc

.3-0sinfoegnarehT

36

En Echo Command

This command controls whether or not the characters entered from your computer
keyboard are echoed back to your monitor while the modem is in command mode.

dnammoCtceffE

0E.retupmocehtotohceselbasiD

1E.)tluafed(retupmocehtotohceselbanE

Result Codes:

KO1,0=n

RORREesiwrehtO

Fn Online Data Character Echo Command

This command determines if the modem will echo data from the DTE. This modem
does not support the F0 version of the command. However, the modem will accept
F1, which may be issued by older communication software, to assure backward com­patibility .

dnammoCtceffE

0F

1F.delbasidohceretcarahcenilnO

.)RORREnruterlliw

,detroppustoN(delbaneohceretcarahcatadenilnO

Result Codes:

KO1=n

RORREesiwrehtO

Hn Hook Control

This command instructs the modem to go on-hook to disconnect a call, or off-hook
to make the phone line busy.

dnammoCtceffE

0H.)tluafed(kooh-noseogmedoM

1H.kooh-ffoseogmedoM

37

Result Codes:

KO1,0=n

RORREesiwrehtO

In Request ID Information

This command displays specific product information about the modem.

dnammoCtceffE

OI)3Isaemas(.ledommedomehtsnruteR

1I

2I

3I)0Isaemas(.ledommedomehtsnruteR

4I.)49,.g.e(pmupatadrofnoisreverawmrifsnruteR

5I.noisreverawmrifrellortnocehtsnruteR

6IKOesnopseR

7IKOesnopseR

8IKOesnopseR

9I.)1.reVaciremAhtroN,.g.e(edocyrtnuocsnruteR

.)BA21,.g.e(

.RORREroKOgniyalpsidmuskcehc

ETDehtnotisyalpsiddnamuskcehcMORsetaluclaC

ehtseifirevdnasetaluclacdnakcehcMORasmrofreP

Result Codes:

KO9-0=n

RORREesiwrehtO

Ln Monitor Speaker Volume

This command sets speaker volume to low, medium, or high.

dnammoCtceffE

0L.emulovtsewolstceleS

1L.emulovwolstceleS

2L.)tluafed(emulovmuidemstceleS

3L.emulovhgihstceleS

38

Result Codes:

KO3,2,1,0=n

RORREesiwrehtO

Mn Monitor S peaker M ode

This command turns the speaker on or off.

dnammoCtceffE

0M.ffosirekaepsehT

1M

2M.kooh-ffosimedomnehwnosyawlasirekaepsehT

3M

.)tluafed(langis

.gnilaidelihw

Result Codes:

KO3,2,1,0=n

RORREesiwrehtO

reirracehtstcetedmedomehtlitnunosirekaepsehT

tpecxe,detcetedsireirracehtlitnunosirekaepsehT

Nn Modulation Handshake

This command controls whether or not the local modem performs a negotiated hand­shake at connection time with the remote modem when the communication speed of
the two modems is different.

dnammoCtceffE

0N

.dnammocBTAehtdna

1N

.)tluafed(ruccoyamdeepsrewola

ekahsdnahrofsisiht,gnirewsnarognitanigironehW

73Sybdeificepsdradnatsnoitacinummocehttaylno

ekahsdnahehtnigeb,gnirewsnarognitanigironehW

73Sybdeificepsdradnatsnoitacinummocehttaylno

otkcabllaf,ekahsdnahgniruD.dnammocBTAehtdna

Result Codes:

KO1,0=n

RORREesiwrehtO

39

On Return On-line to Data Mode

dnammoCtceffE

0O

1O

3O

.edomatadenil

.edomatadenilnootgninruter

dnaedomdnammocenil-notixeotmedomehtstcurtsnI

.)+++,ecneuqeSepacsETAees(edomatadotnruter

-nootgninrutererofebniarteraseussidnammocsihT

erofebnoitaitogeneretaraseussidnammocsihT

Result Codes:

KO3,1,0=n

RORREesiwrehtO

P Select Pulse Dialing

This command configures the modem for pulse (non-touch-tone) dialing. Dialed
digits are pulsed until a T command or dial modifier is received. Tone dial is the
default setting.

Qn Result Code Control

Result codes are informational messages sent from the modem and displayed on your
monitor. Basic result codes are OK, CONNECT, RING, NO CARRIER, and ER­ROR. The ATQ command allows the user to turn result codes on or off.

dnammoCtceffE

0Q

1Q

.)tluafed(

.retupmoc

retupmocehtotsedoctluserdnesotmedomselbanE

ehtotsedoctlusergnidnesmorfmedomselbasiD

Result Codes:

KO1,0=n

RORREesiwrehtO

40

T Select Tone Dialing

This command instructs the modem to send DTMF tones while dialing. Dialed
digits are tone dialed until a P command or dial modifier is received. This is the
default setting.

Vn DCE Response Format

This command controls whether result codes (including call progress and negotia­tion progress messages) are displayed as words or their numeric equivalents.

dnammoCtceffE

0V.txetsyawlaerastluseR.detroppustoN

1V.)tluafed(txetsasedoctlusersyalpsiD

Result Codes:

KO1,0=n

RORREesiwrehtO

Wn Result Code Option

Result Codes:

KO2,1,0=n

dnammoCtceffE

0W

1W

2W

RORREesiwrehtO

.sedoctluserlocotorp

.sedoctluserlocotorp

.)tluafed(sedoctluserlocotorp

elbasiD.deepsETDstroperedoctluserTCENNOC

elbanE.deepsETDstroperedoctluserTCENNOC

elbanE.deepsECDstroperedoctluserTCENNOC

41

Xn Result Code Selection and Call Progress Monitoring

This command enables tone detection options used in the dialing process. As these
functions are chosen, the result codes are also affected. Therefore, this command is
frequently used to control the modem chipset’s responses. The primary function of
this control is to control the modem chip set’s call response capabilities.

dnammoCedoCtluseRtceteDenoTlaiDtceteDenoTysuB

0XelbasiDelbasiDelbasiD

1XelbanEelbasiDelbasiD

2XelbanEelbanEelbasiD

3XelbanEelbasiDelbanE

4XelbanEelbanE)tluafed(elbanE

5XelbanEelbanEelbanE

6XelbanEelbanEelbanE

7XelbasiDelbanEelbanE

Extended Result Codes

dednetxE

sedoCtluseR

delbasiD

delbanE

Dial Tone Detect

enoTlaiD

tceteD

delbasiD

delbanE

tceffE

,TCENNOC,KOsedoctlusercisabehtylnosyalpsiD

.RORREdna,REIRRACON,GNIR

tcennocehthtiwgnola,sedoctlusercisabsyalpsiD

nadna,etaratadsmedomehtdnaegassem

ataddnanoitcerrocrorresmedomehtfonoitacidni

.noitareponoisserpmoc

tceffE

stcetedtirehtehwfosseldragerllacaslaidmedomehT

erofebstiawmedomehtemitfodoirepehT.enotlaida

.6Sretsigernideificepssignilaid

,enotlaidafonoitcetednopuylnoslaidmedomehT

detcetedtonsienotlaidehtfillacehtstcennocsiddna

.sdnoces01nihtiw

42

Busy Tone Detect

enoTysuB

tceteD

delbasiD.seviecertisenotysubynaserongimedomehT

delbanE.senotysubrofsrotinommedomehT

tceffE

Result Codes:

KO

RORREesiwrehtO

,2,1,0=n

7,6,5,4,3

Yn Long Space Disconnect

Long space disconnect is always disabled.

dnammoCtceffE

0Y.)tluafed(tcennocsidecapsgnolelbasiD

1Y).detroppustoN(.tcennocsidecapsgnolelbanE

Result Codes:

KO0=n

RORREesiwrehtO

Zn Recall Stored Profile

This command instructs the modem chip set to go on-hook and restore the profile
saved by the last &W command. Either Z0 or Z1 restores the same single profile.

Result Codes:

KO1,0=n

RORREesiwrehtO

43

&Bn V.32 Auto Retrain

This modem always auto retrains.

dnammoCtceffE

0B&).detroppustoN(niarterotua23.VelbasiD

1B&.)tluafed(niarterotua23.VelbanE

Result Codes:

KO1=n

RORREesiwrehtO

&Cn D ata Carrier Detect (DCD) Control

Data Carrier Detect is a signal from the modem to your computer indicating that the
carrier signal is being received from a remote modem. DCD normally turns off when
the modem no longer detects the carrier signal.

dnammoCtceffE

0C&

1C&

.)tluafed(detceted

.nosyawlasitiucricDCD.derongi

simedometomerehtmorfreirracehtfoetatsehT

langisreirracsmedometomerehtnehwnosnrutDCD

tonsilangisreirracehtnehwffodna,detcetedsi

Result Codes:

KO1,0=n

RORREesiwrehtO

44

&Dn DTR Control

This command interprets how the modem responds to the state of the DTR signal
and changes to the DTR signal.

dnammoCtceffE

0D&

1D&

.detcennocsniamerdna,edoctluser

2D&

3D&

.deviecersawdnammoc

dnaRTDfosutatseurtehtserongimedomehT.erongI

ruoyfidesuebylnodluohssihT.nosyawlasatistaert

.medomehtotRTDedivorptonseodretupmoc

atadenil-nonielihwdetcetedtonsilangisRTDehtfI

KOseussi,edomdnammocsretnemedomeht,edom

atadenil-nonielihwdetcetedtonsilangisRTDehtfI

silangissihtfI.)tluafed(stcennocsidmedomeht,edom

.laidrorewsnatonlliwmedomeht,tneserpton

,srucconoitisnartffo-ot-nonanehwlangisRTDrotinoM

ZTAehtfisatesertfosasmrofrepmedomeht

Result Codes:

KO

3

RORREesiwrehtO

,2,1,0=n

&Fn Load Factory Settings

This command loads the configuration stored and programmed at the factory. This
operation replaces all of the command options and the S-register settings in the ac­tive configuration with factory values.

dnammoCtceffE

0F&)tluafed(.noitarugifnocevitcasagnittesyrotcafllaceR

45

&Gn V .22bis G uard Tone Control

This command determines which guard tone, if any, to transmit while transmitting
in the high band (answer mode). This command is only used in V.22 and V.22bis
mode. This option is not used in North America and is for international use only.

dnammoCtceffE

0G&.)tluafed(delbasidenotdrauG

1G&.zH055otenotdraugsteS

2G&.zH0081otenotdraugsteS

Result Codes:

KO2,1,0=n

RORREesiwrehtO

&Jn Auxiliary Relay option

dnammoCtceffE

0J&.desolcrevensiyaleryrailixuaehT

1J&.RORREsdnopser,DETROPPUSTON

Result Codes:

KO0=n

RORREesiwrehtO

&Kn Local Flow Control S election

dnammoCtceffE

0K&.lortnocwolfelbasiD

1K&.devreseR

2K&.devreseR

3K&.)tluafed(lortnocwolfSTC/STRelbanE

4K&.lortnocwolfFFOX/NOXelbanE

46

Result Codes:

KO4,3,0=n

RORREesiwrehtO

&Mn Asynchronous Communications Mode

dnammoCtceffE

0M&.)tluafed(edomsuonorhcnysA

1M&.devreseR

2M&.devreseR

3M&.devreseR

4M&.devreseR

Result Codes:

KO0=n

RORREesiwrehtO

&Pn Pulse Dial Make-to-Break Ratio Selection

This Command is effective only for use in Japan.

dnammoCtceffE

0P&SPP01,oitarkaerb/ekam16/93

IP&)tluafed(SPP01,oitarkaerb/ekam76/33

2P&SPP02,oitarkaerb/ekam76/33

Result Codes:

KO2,1,0=n

RORREesiwrehtO

47

&Qn Asynchronous Communications Mode

dnammoCtceffE

0Q&.0N\saemaS.dereffub,edoMsuonorhcnysA

1Q&.devreseR

2Q&.devreseR

3Q&.devreseR

4Q&.devreseR

5Q&.3N\saemaS.)tluafed(dereffub,edoMlortnoCrorrE

6Q&.0N\saemaS.dereffub,edoMsuonorhcnysA

7Q&.devreseR

8Q&

9Q&

Result Codes:

lortnocrorrePNMnafI.edomlortnocrorrePNM

kcabllaflliwmedomeht,dehsilbatsetonsilocotorp

.63Snignittesresutnerrucehtotgnidrocca

lortnocrorrerehtienfI.edomlortnocrorrePNMro24.V

kcabllaflliwmedomeht,dehsilbatsesilocotorp

.63Snignittesresutnerrucehtotgnidrocca

KO

RORREesiwrehtO

,6,5,0=n

9,8

&Sn Data Set Ready (DSR) Option

This command selects DSR action.

dnammoCtceffE

0S&.)tluafed(NOsyawlaRSD

1S&

Result Codes:

KO1,0=n

RORREesiwrehtO

48

.sdnenoitcennocehtnehwffoseog

dnanoitcennocagnihsilbatsenehwnosemocRSD

&V0 View Active Configuration and Stored Pr ofile

This command is used to display the active profiles.

dnammoCtceffE

0V&elifevitcaweiV

Below is an example of a possible output:

Option Selection AT Cmd

Comm Standard Bell B
CommandCharEcho Enable E
Speaker Volume Medium L
Speaker Control OnUntilCarrier M
Result Codes Enable Q
Dialer Type Tone T/P
ResultCode Form Text V
ExtendResultCode Enabled X
DialTone Detect Enable X
BusyTone Detect Enable X
LSD Action Standard RS232 &C
DTR Action Standard RS232 &D

Press any key to continue; ESC to quit.

Option Selection AT Cmd

V22b Guard Tone Disable &G
Flow Control Hardware &K
Error Control Mode V42, MNP, Buffer \N
Data Compression V42bis/MNP5 %C
AutoAnswerRing# 0 S0
AT Escape Char 43 S2
CarriageReturn Char 13 S3
Linefeed Char 10 S4
Backspace Char 8 S5
Blind Dial Pause 2 sec S6
NoAnswer Timeout 50 sec S7
“,“ Pause Time 2 sec S8

Press any key to continue; ESC to quit.

49

Option Selection AT Cmd

No Carrier Disc 2000 msec S10
DTMF Dial Speed 95 msec S11
Escape Guard Time 1000 msec S12
Data Calling Tone Disabled S35
Line Rate 33600 S37
DSVD mode Disabled -SSE

Stored Phone Numbers

&Z0=
&Z1=
&Z2=
&Z3=

OK

&Wn S tor e C urr ent Configuration

This command stores certain command options and S-register values into the modem ’ s
nonvolatile memory. The ATZ command or a powerup reset of the modem restores
this profile.

Result Codes:

KO0=n

RORREesiwrehtO

&Yn Select Stored Profile for Hard Reset

This command does not change the behavior of the modem but is included for com­patibility with applications that issue the &Y0 command:

dnammoCtceffE

0Y&purewopno0eliforpderotstceleS

1Y&RORRE

Result Codes:

KO0=n

RORREesiwrehtO

50

&Zn=x Store Telephone Number

This command is used to store up to four dialing strings in the modem ’s nonvolatile
memory for later dialing. The format for the command is &Zn = ”stored number”
where n is the location 0?3 to which the number should be written. The dial string
may contain up to 40 characters. The ATDS = n command dials using the string
stored in location n.

Result Codes:

KO3,2,1,0=n

RORREesiwrehtO

\An Select Maximum MNP Block Size

The modem will operate an MNP error corrected link using a maximum block size
controlled by the parameter supplied.

dnammoCtceffE

OA\sretcarahc46

1A\sretcarahc821

2A\sretcarahc291

3A\)tluafeD(sretcarahc652

Result Codes:

KO3,2,1,0=n

RORREesiwrehtO

\Bn T ransmit Br eak to Remote

In non-error correction mode, the modem will transmit a break signal to the remote
modem with a length in multiples of 100ms according to parameter specified. The
command works in conjunction with the \K command.

dnammoCtceffE

9B\-1B\

).ylnoedomdetcerroc

rorre-noN().3=tluafeD(.stinusm001nihtgnelkaerB

Result Codes:

KO.edommedomatadnidetcennocfI

REIRRACON.edommedomxafnidetcennocrodetcennoctonfI

51

\G Modem Port Flow Control

dnammoCtceffE

0G\.)tluafed(ytilibitapmocrofKOnasnruteR

1G\.RORREsdnopserDETROPPUSTON

Result Codes:

KO0=n

RORREesiwrehtO

\J Adjust Bits/s Rate Control

When this feature is enabled, the modem emulates the behavior of modems that
force the DTE interface to the line speed.

dnammoCtceffE

0J\.)tluafed(erutaefffonruT

1J\.erutaefnonruT

Result Codes:

KO1,0=n

RORREesiwrehtO

52

\Kn Break Control

Controls the response of the modem to a break received from the DTE or the remote
modem or the \B command. The response is different in three separate states. The
first state is where the modem receives a break from the DTE when the modem is
operating in data transfer mode:

dnammoCtceffE

0K\

1K\.medometomerotkaerbdnesdnasreffubatadraelC

2K\.0saemaS

3K\.yletaidemmimedometomerotkaerbdneS

4K\.0saemaS

5K\

.medometomer

).tluafeD(.ataddettimsnart

ehtottneskaerbon,edomdnammocenil-noretnE

htiwecneuqesnimedometomerotkaerbdneS

The second case is where the modem is in the on-line command state (waiting for AT
commands) during a data connection, and the \B is received in order to send a break
to the remote modem:

dnammoCtceffE

0K\.medometomerotkaerbdnesdnasreffubatadraelC

1K\

2K\.yletaidemmimedometomerotkaerbdneS

3K\

4K\.atadhtiwecneuqesnimedometomerotkaerbdneS

5K\

).0saemaS(

).2

)tluafeD().4saemaS(

.medometomerotkaerbdnesdnasreffubatadraelC

saemaS(.yletaidemmimedometomerotkaerbdneS

.atadhtiwecneuqesnimedometomerotkaerbdneS

53

The third case is where a break is received from a remote modem during a connec­tion:

dnammoCtceffE

0K\.ETDehtotkaerbdnesdnasreffubatadraelC

1K\

2K\.ETDotyletaidemmikaerbadneS

3K\).2saemaS(.ETDotyletaidemmikaerbadneS

4K\.ETDotataddeviecerhtiwecneuqesnikaerbadneS

5K\

).0sa

)tluafeD().4saemaS(

emaS(.ETDehtotkaerbdnesdnasreffubatadraelC

.ETDotataddeviecerhtiwecneuqesnikaerbadneS

Result Codes:

KO

5

RORREesiwrehtO

,4,3,2,1,0=n

\Nn Error Control Mode Selection

This command determines the type of error control used by the modem when send­ing or receiving data.

dnammoCtceffE

0N\.)6Q&saemas(lortnocrorreoN.edomreffuB

1N\.edomtceriD

otstpmettamedomehT.edomtcennocsidroPNM

2N\

.edomelbailer

3N\

.)5Q&saemas(edomelbailer

4N\

.detcennocsid

5N\)3N\saemas(reffubroPNM24.V

7N\.)3N\saemas(reffubroPNM.24.V

,sliafsihtfI.erudecorplortnocrorre4-2PNMnitcennoc

PNMsanwonkoslasisihT.stcennocsidmedomeht

otstpmettamedomehT.)tluafed(reffubro,PNM,24.V

eht,sliafsihtfI.edomlortnocrorre24.Vnitcennoc

,sliafsihtfI.edomPNMnitcennocotstpmettamedom

seunitnocdnaedomreffubnistcennocmedomeht

otuaPNM/24.VsanwonkoslasisihT.noitarepo

nitcennocotstpmettamedomehT.tcennocsidro24.V

eblliwllaceht,sliafsihtfI.edomlortnocrorre24.V

54

Result Codes:

KO7,5,4,3,2,1,0=n

RORREesiwrehtO

\Q Local Flow Control Selection

dnammoCtceffE

0Q\.0K&saemaS.lortnocwolfelbasiD

1Q\.4K&saemaS.lortnocwolferawtfosFFOX/NOX

2Q\

3Q\.3K&saemaS.)tluafed(ETDotSTC/STR

.RORREsiesnopser

ehtdna,detroppustonsisihT.lortnocwolfylno-STC

Result Codes:

KO3,1,0=n

RORREesiwrehtO

\Rn Ring indicator signal off after the telephone call is answered

(Compatibility command)

Result Codes:

KO0=n

dnammoCtceffE

0R\

RORREesiwrehtO

derewsna

sillacenohpeletehtretfaffosilangisrotacidnigniR

55

\Tn Inactivity Timer

This command specifies the length of time (in minutes) that the modem will wait
before disconnecting when no data is sent or received. A setting of zero disables the
timer. Alternatively, this timer may be specified in register S30. This function is only
applicable to buffer mode.
Result Codes:

KO552-0=n

RORREesiwrehtO

\Vn Protocol Result Code

dnammoCtceffE

0V\edoctluserlocotorpelbasiD

1V\edoctluserlocotorpelbanE

2V\edoctluserlocotorpelbanE

Result Codes:

KO2,1,0=n

RORREesiwrehtO

\Xn XON/XOFF Pass Through

dnammoCtceffE

0X\

1X\

)tluafed(yllacol

sretcarahc

Result Codes:

KO1,0=n

RORREesiwrehtO

56

sretcarahclortnocwolfFFOX/NOXsessecorpmedoM

lortnocwolfFFOX/NOXssapdnasessecorpmedoM

-Cn Data Calling Tone

Data Calling Tone is a tone of certain frequency and cadence as specified in V.25
which allows remote Data/FAX/Voice discrimination. The frequency is 1300 Hz with
a cadence of .5 s on and 2 s off.

dnammoCtceffE

0X\

1X\

)tluafed(yllacol

sretcarahc

sretcarahclortnocwolfFFOX/NOXsessecorpmedoM

lortnocwolfFFOX/NOXssapdnasessecorpmedoM

Result Codes:

KO1,0=n

RORREesiwrehtO

%B View Numbers in Blacklist

If blacklisting is in effect, this command displays the numbers for which the last call
attempted in the past two hours failed. The ERR OR result code appears in countries
that do not require blacklisting.

%Cn Enable/Disable Data Compression

Enables or disables data compression negotiation on an error corrected link.

Result Codes:

KO1,0=n

dnammoCtceffE

0C%noisserpmocatadselbasiD

1C%noisserpmocatad5PNMdnasib24.VhtobselbanE

RORREesiwrehtO

57

AT Commands for Testing and Debugging

The following commands are to be used for testing and debugging only and are not
meant for general use.

&&C Write to/Read from DSP Register

dnammoCtceffE

->col<C&&TA

>lav<,

>col<C&&TA.>col<noitacolmorfsdaer

.>col<noitacoltaretsigerPSDot>lav<eulavehtsetirw

&&L Line-to-Line Loopback

This command provides a loopback for line-to-line.

&&R W rite to/R ead from DSP RAM Location

dnammoCtceffE

>lav<

-,>col<R&&TA

>col<R&&TA>col<noitacolmorfsdaer

>col<noitacolMARPSDot>lav<eulavehtsetirw

&Tn Self-Test Commands

This command allows the user to perform diagnostic tests on the modem. These tests
can help to isolate problems when experiencing periodic data loss or random errors.

dnammoCtceffE

0T&.ssergorpnitsetynaspotS.trobA

,noitarepomedomseifirevtsetsihT.poolgolanalacoL

1T&

3T&.tsetkcabpoollatigidlacoL

6T&

.delbasidlortnocrorre

dnamedomehtneewtebnoitcennocehtsallewsa

siETDlacolehttaderetneatadynA.retupmoc

lacolehtotdenruterdna,detaludomedneht,detaludom

.enil-ffoebtsummedomeht,ylreporpkrowoT.ETD

ehtyfirevnactsetsihT.tsetkcabpoollatigidetomeR

,knilsnoitacinummoceht,medomlacolehtfoytirgetni

lacolehttaderetneatadynA.medometomerehtdna

.medometomereht,morfdenruterdna,ottnessiETD

htiwenil-noebtsumsmedomeht,ylreporpkrowoT

58

Result Codes:

KO0=n

TCENNOC6,3,1=n

RORREesiwrehtO

ATI11 Display Diagnostic Information for the last modem connection

The “ATI11” command displays the following diagnostic information for the last
modem connection. A value of “NA” will be displayed if that parameter is not appli­cable for that connection.

Table 1. Diagnostic Information

Description Example Comments

Last Connection .34 56K/V.34/V.32 - The last data connection is

Initial Transmit Carrier Rate 33600 The upload connection rate after initial nego-

Initial Receive Carrier Rate 33600 The download connection rate after initial ne-

Final Transmit Carrier Rate 33600 The last upload connection rate.

Final Receive Carrier Rate 33600 The last download connection rate.

Protocol Negotiation Result V.42 Possible results are: V.42, MNP or noEC
Data Compression Result V.42bis Possible results are: V.42bis, MNP5 or no

Estimated Noise Level 10 An average of the squared error between the

Receive Signal Power Level 20 Receive signal (-dBm)

Transmit Signal Power Level 10 Transmit signal level ( –dBm)

Round Trip Delay (msec) 60 Measured Round Trip Delay in milliseconds

successful. Failure-the last data connection
failed.

tiation.

gotiation.

Compression.

received constellation point and the decision
point.

Near Echo Level (-dBm) 39 Measured Near Echo Level

59

Description Example Comments
Far Echo Level (-dBm) 60 Measured Far Echo Level
Transmit Frame Count 5000 Number of HDLC frames transmitted.

Transmit Frame Error Count 1 0 Number of frame errors transmitted

Receive Frame Count 5000 Number of HDLC frames received.

Receive Frame Error Count 10 Number of frame errors received
Retrain and Rate Negotiate Event 1 Number of retrains initiated by the local mo-

Retrain and Rate Negotiate Event 1 Number of retrains initiated by the by remote

Call Termination Cause 0 0 -Call Terminated by Local modem

Robbed-Bit Signaling (56K only) 6 The number of robbed bits detected.

Digital Loss 0 Digital Loss in dB.

Remote Server ID XXX ID number of remote server.

dem.

modem.

1 -Call Terminated by Remote modem
2 -No Answer - the Remote modem did not
answer
3 -Training Failure - the modems failed to ne­gotiate V.34 or 56K protocols.
4 -Protocol Failur e - the modems failed to ne­gotiate V.42 protocol.

S-Registers Reference

S-registers generally affect how the A T commands perform. Contents of the registers
can be displayed or modified when the modem is in command mode.

To display the value of an S-register:

TYPE: ATSn?
where n is the register number. Press ENTER.
To modify the value of an S-register:

TYPE: ATSn = r
where n is the register number, and r is the new register value. Press ENTER.

60

S0 Auto Answer Ring Number

Range: 0−255

Default: 0

Units: rings
This register determines the number of rings the modem will count before automati-

cally answering a call. Enter 0 (zero) if you do not want the modem to automatically
answer at all. When disabled, the modem can only answer with an ATA command.

S1 Ring Counter

Range: 0−255

Default: 0

Units: rings
This register, Ring Counter, is read only. The value of S1 is incremented with each

ring. If no rings occur over a six second interval, this register is cleared.

S2 AT Escape Character (user defined)

Range: 0−255

Default: 43

Units: ASCII
This register determines the ASCII valued used for an escape sequence. The default is

the + character. The escape sequence allows the modem to exit data mode and enter
command mode when on-line. Values greater than 127 disable the escape sequence.

S3 Command Line Termination Character (user defined)

Range: 0−127, ASCII decimal

Default: 13 (carriage return)

Units: ASCII
This register determines the ASCII values as the carriage return character . This char­acter is used to end command lines and result codes.

S4 Response Formatting Character (user defined)

Range: 0−127, ASCII decimal

Default: 10 (line feed)

Units: ASCII
This register determines the ASCII value used as the line feed character. The modem

uses a line feed character in command mode when it responds to the computer.

61

S5 Command Line Editing Character (user defined)

Range: 0−32, 127

Default: 8 (backspace)

Units: ASCII
This register sets the character recognized as a backspace and pertains to asynchro-

nous only . The modem will not recognize the backspace character if it is set to a value
that is greater than 32 ASCII. This character can be used to edit a command line.
When the echo command is enabled, the modem echoes back to the local DTE the
backspace character, an ASCII space character, and a second backspace character.
This means a total of three characters are transmitted each time the modem processes
the backspace character.

S6 Wait Before Dialing

Range: 2-65

Default: 2

Units: seconds
This register sets the length of time, in seconds, that the modem must wait (pause)

after going off-hook before dialing the first digit of the telephone number. The mo­dem always pauses for a minimum of two seconds, even if the value of S6 is less than
two seconds. The wait for dial tone call progress feature (W dial modifier in the dial
string) will override the value in register S6. This operation, however , may be affected
by some ATX options according to country restrictions.

S7 Connection Completion Time-Out

Range: 1-255

Default: 50

Units: seconds
This register sets the time, in seconds, that the modem must wait before hanging up

because carrier is not detected. The timer is started when the modem finishes dialing
(originate), or goes off-hook (answer). In originate mode, the timer is reset upon
detection of an answer tone if allowed by country restriction. The timer also specifies
the wait for silence time for the @ dial modifier in seconds. S7 is not associated with
the W dial modifier.

S8 Comma Dial Modifier Time

Range: 0-65

Default: 2

Units: seconds

62

This register sets the time, in seconds, that the modem must pause when it encoun­ters a comma (“,”) in the dial command string.

S10 Automatic Disconnect Delay

Range: 1-254

Default: 20

Units: 0.1 seconds
This register sets the length of time, in tenths of a second, that the modem waits

before hanging up after a loss of carrier. This allows for a temporar y carrier loss
without causing the local modem to disconnect. The actual interval the modem waits
before disconnecting is the value in register S10.

S11 DTMF Dialing Speed

Range: 50-150

Default: 95

Units: 0.001 seconds
This register determines the dialing speed which is prefixed for each country.

S12 Escape Guard Time

Range: 0-255

Default: 50

Units: 0.02 seconds
This register sets the value (in 20 ms increments) for the required pause after the

escape sequence (default 1s).

S14 General Bit Mapped Options Status

Indicates the status of command options. Only bit 2 and bit 5 are used, read only.

Bit 3 Result codes (Vn)

0 = Numeric (V0)
1 = Verbose (Vl) (Default)

Bit 6 Pulse dial PPS selection (&Pn)

0 = 10 PPS (&p0, &p1) (Default)
1 = 20 PPS (&p2)

Default: 8 (00001000b)

63

S21 V.24/General Bit Mapped Options Status

Indicates the status of command options. Only bits 3, 4 and 5 are used, read only.

Bits 3-4 DTR behavior (&Dn)

0 = &D0 selected
1 = &D1 selected
2 = &D2 selected (Default)
3 = &D3 selected

Bit 5 DCD behavior (&Cn)

0 = &C0 selected
1 = &C1 selected (Default)

Default: 48 (00110000b)

S22 Results Bit Mapped Options Status

Indicates the status of command options. Only bits 4, 5 and 6 are used, read only.

Bits 4-6 result codes (Xn)

0 = X0 selected
4 = X1 selected
5 = X2 selected
6 = X3 selected
7 = X4 selected (Default)

Bit 7 Pulse dial make/break ratio (&Pn)

0 = 33/67 make/break ratio (&P1, &P2) (Default)
1 = 39/61 make/break ratio (&P0)

Default: 112 (01110000b)

S24 Timer to Control Sleep Mode

Range: 0, 5-255

Default: 10
This command displays the number of seconds of inactivity (no characters sent from

the DTE, no RING) in the off-line command state before the modem places itself
into standby mode. A value of zero prevents standby mode.

If a number between 1 and 4 is entered for this register , it will set the value to 5, and
the inactivity before standby will be 5 seconds. This is done for compatibility with
previous products which allowed time-outs down to 1s.

64

S28 V .34 M odulation Enable/Disable

0 = disabled, 1-255 = enabled,

Range: 0-255

Default: 1
This register enables/disables V.34 modulation.

S30 Inactivity Timer

Range: 0-255

Default: 0

Units: minutes
S30 specifies the length of time (in minutes) that the modem will wait before discon-

necting when no data is sent or received. This function is only applicable to buffer
mode.

S32 Synthetic Ring Volume

Range: 0-255

Default: 10
This register specifies a synthetic ring volume in dB with an implied minus sign.

S33 Synthetic Ring Frequency

Range: 0-5

Default: 0
This register specifies a synthetic ring frequency. Valid ranges are 0-5, with 0= dis-

abled and 1-5 corresponding to 5 ring frequencies.

S35 Data Calling T one

0 = disabled, 1 = enableD

Range: 0-1

Default: 0
Data Calling Tone is a tone of certain frequency and cadence as specified in V.25

which allows remote Data/FAX/Voice discrimination. The frequency is 1300 Hz with
a cadence of .5 s on and 2 s off.

65

S36 Negotiation Fallback (default 7)

This register specifies the action to take in the event of negotiation failure when error
control is selected.

S36 = 0, 2 Hang up.

S36 = 1, 3 Fall back to an asynchronous connection.

S36 = 4, 6 Attempt MNP. If MNP fails, hang up.

S36 = 5, 7 Attempt MNP. If MNP fails, fall back to asynchronous

connection.

S37 Dial Line Rate (default 0)

S37 = 0 maximum modem speed
S37 = 1 reserved
S37 = 2 1200 bits/s and 75 bits/s
S37 = 3 300 bits/s
S37 = 4 reserved
S37 = 5 1200 bits/s
S37 = 6 2400 bits/s
S37 = 7 4800 bits/s
S37 = 8 7200 bits/s
S37 = 9 9600 bits/s
S37 = 10 12000 bits/s
S37 = 11 14400 bits/s
S37 = 12 16800 bits/s
S37 = 13 19200 bits/s
S37 = 14 21600 bits/s
S37 = 15 24000 bits/s
S37 = 16 26400 bits/s
S37 = 17 28800 bits/s
S37 = 18 31200 bits/s
S37 = 19 33600 bits/s

S38 56K Dial Line Rate (default 1)

There are 2 S-registers which support K56flex connections. S38 sets the maximum
56K downstream speed that the modem attempts to connect. To disable K56flex, set
S38 to 0. The S37 register is used to control the upstream V.34 rate. (ref. V.34 Data/
Fax Document). Use the S109 register to control V.90 connections.

S38 = 0 K56flex disabled - V.34 connection (see S37)
S38 = 1 K56flex autorate - maximum achievable connection

66

S38 = 2 32000 bits / s
S38 = 3 34000 bits / s
S38 = 4 36000 bits / s
S38 = 5 38000 bits / s
S38 = 6 40000 bits / s
S38 = 7 42000 bits / s
S38 = 8 44000 bits / s
S38 = 9 46000 bits / s
S38 = 10 48000 bits / s
S38 = 11 50000 bits / s
S38 = 12 52000 bits / s
S38 = 13 54000 bits / s
S38 = 14 56000 bits / s

S42 Auto Rate (default 1, range 0-1)

0 = auto rate disabled, 1 = enabled.

Range: 0-1

Default: 1
This command is used for testing and debugging only . V.32bis and V.22bis auto rate

is disabled. Retrain operation is disabled or enabled in data mode, and fallback is
disabled in data mode.

S43 Auto Mode (default 1, range 0-1)

0 = auto mode disabled, 1 = enabled

Range: 0-1

Default: 1
This command is used for testing and debugging only. V.32bis startup auto mode

operation is disabled.

S48 LAPM Error Control and Feature Negotiation (default 7)

S48 = 7 Negotiation enabled.

S 48 = 128 Negotiation disabled; forces immediate fallback options

specified in S36.

The following chart lists the S36 and S48 configuration settings necessary to negoti­ate certain types of connections:

67

S48=7 S48 =128

S36 = 0, 2 LAPM or hangup do not use

S36 = 1, 3 LAPM or async async

S36 = 4, 6 LPAM, MNP, or hangup MNP or hangup

S36 = 5, 7 LAPM, MNP, or async MNP or async

S89 Timer to Control Sleep Mode

Range: 0, 5-255

Default: 10
This command displays the number of seconds of inactivity (no characters sent from

the DTE, no RING) in the off-line command state before the modem places itself
into standby mode. A value of zero prevents standby mode.

If a number between 1 and 4 is entered for this register , it will set the value to 5, and
the inactivity before standby will be 5 seconds. This is done for compatibility with
previous products which allowed time-outs down to 1s.

S90 Local Phone Status

0 = local phone on-hook

1 = local phone off-hook
This register tells the status of the local phone. It is read only.

S91 Line Transmit Level

Range: 6-15

Default: 15

Units: 1 dB
This register is effective only for Japan. It specifies the line transmit level in dB with

an implied minus sign.

S92 Direct Connect Transmit Level (default 20)

Sets the transmit level, in dBm for direct connect. This value may have different
settings for different phones.

68

S109 K56flex and V.90 Selection (default 1)

Use this register to disable 56K connections or to choose between K56flex and V.90
protocols. The default setting (S109=1) will attempt K56flex first, then V.90, and
then V.34 depending upon the central site modem being called and your phone line
conditions. (see the next page for listing.)

S109 = 0 Disable all 56K connections
S109 = 1 K56flex first, then V.90 (default)
S109 = 2 V.90 only. K56flex disabled

Table 2. The Result Code Summary

Result Code Description
OK Command executed

CONNECT Modem connected to line
RING A ring signal has been detected
NO CARRIER Modem lost carrier signal, or does not detect carrier signal, or

ERROR Iinvalid command
CONNECT 1200 EC* Connection at 1200 bits/s
NO DIALTONE No dial tone detected
BUSY Busy signal detected
NO ANSWER8 No quiet answer
CONNECT 2400 EC* Connection at 2400 bits/s
CONNECT 4800 EC* Connection at 4800 bits/s
CONNECT 9600 EC* Connection at 9600 bits/s
CONNECT 14400 EC* Connection at 14400 bits/s
CONNECT 19200 EC* Connection at 19200 bits/s
CONNECT 7200 EC* Connection at 7200 bits/s
CONNECT 12000 EC* Connection at 12000 bits/s
CONNECT 16800 EC* Connection at 16800 bits/s
CONNECT 300 EC* Connection at 300 bits/s
CONNECT 21600 EC* Connection at 21600 bits/s
CONNECT 24000 EC* Connection at 24000 bits/s
CONNECT 26400 EC* Connection at 26400 bits/s
CONNECT 28800 EC* Connection at 28800 bits/s
CONNECT 31200 EC* Connection at 31200 bits/s
CONNECT 33600 EC* Connection at 33600 bits/s
CONNECT 38400 EC* Connection at 38400 bits/s
CONNECT 57600 EC* Connection at 57600 bits/s
CONNECT 115200 EC Connection at 115200 bits/s
DELAYED Delay is in effect for the dialed number
BLACKLISTED Dialed number is blacklisted
BLACKLIST FULL Blacklist is full
CONNECT 32000 EC* Connection at 32000 bits/s, 56K rate
CONNECT 34000 EC* Connection at 34000 bits/s, 56K rate
CONNECT 36000 EC* Connection at 36000 bits/s, 56K rate
CONNECT 38000 EC* Connection at 38000 bits/s, 56K rate
CONNECT 40000 EC* Connection at 40000 bits/s, 56K rate

does not detect answer tone

69

Result Code Description
CONNECT 42000 EC* Connection at 42000 bits/s, 56K rate

CONNECT 44000 EC* Connection at 44000 bits/s, 56K rate
CONNECT 46000 EC* Connection at 46000 bits/s, 56K rate
CONNECT 48000 EC* Connection at 48000 bits/s, 56K rate
CONNECT 50000 EC* Connection at 50000 bits/s, 56K rate
CONNECT 52000 EC* Connection at 52000 bits/s, 56K rate
CONNECT 54000 EC* Connection at 54000 bits/s, 56K rate
CONNECT 56000 EC* Connection at 56000 bits/s, 56K rate
CONNECT 58000 EC* Connection at 58000 bits/s, 56K rate
CONNECT 60000 EC* Connection at 60000 bits/s, 56K rate
CONNECT 28000 EC* Connection at 28000 bits/s, V.90 rate
CONNECT 29333 EC* Connection at 29333 bits/s, V.90 rate
CONNECT 30666 EC* Connection at 30666 bits/s, V.90 rate
CONNECT 32000 EC* Connection at 32000 bits/s, V.90 rate
CONNECT 33333 EC* Connection at 33333 bits/s, V.90 rate
CONNECT 34666 EC* Connection at 34666 bits/s, V.90 rate
CONNECT 36000 EC* Connection at 36000 bits/s, V.90 rate
CONNECT 37333 EC* Connection at 37333 bits/s, V.90 rate
CONNECT 38666 EC* Connection at 38666 bits/s, V.90 rate
CONNECT 40000 EC* Connection at 40000 bits/s, V.90 rate
CONNECT 41333 EC* Connection at 41333 bits/s, V.90 rate
CONNECT 42666 EC* Connection at 42666 bits/s, V.90 rate
CONNECT 44000 EC* Connection at 44000 bits/s, V.90 rate
CONNECT 45333 EC* Connection at 45333 bits/s, V.90 rate
CONNECT 46666 EC* Connection at 46666 bits/s, V.90 rate
CONNECT 48000 EC* Connection at 48000 bits/s, V.90 rate
CONNECT 49333 EC* Connection at 49333 bits/s, V.90 rate
CONNECT 50666 EC* Connection at 50666 bits/s, V.90 rate
CONNECT 52000 EC* Connection at 52000 bits/s, V.90 rate
CONNECT 53333 EC* Connection at 53333 bits/s, V.90 rate

* EC only appears when the Extended Result Codes configuration option is enabled. EC is replaced by

one of the following symbols, depending upon the error control method used:
V42bis—V.42 error control and V.42bis data compression.

V42—V.42 error control only.
MNP 5— MNP class 4 error control and MNP class 5 data compression.
MNP 4— MNP class 4 error control only.
NoEC—No error control protocol.

70

Appendix B: Communications Regulations

FCC REGULATIONS

The following statements are provided in accordance with the F ederal Communica­tions Commission (FCC) regulations. Please read these statements carefully before
installing your modem.

FCC PART 68 REQUIREMENTS

This equipment complies with Part 68 of the FCC Rules. On the bottom of this
equipment is a label that contains, among other information, the FCC Registration
Number and Ringer Equivalence Number (REN) for this equipment. If requested,
this information must be given to the telephone company.

The REN is used to determine the maximum number of devices connected to your
telephone line that will ring in response to an incoming call. In most, but not all,
areas, the total REN of devices connected to a line should not exceed five (5.0). To
find out the total permitted in your area, contact your local telephone company.

If your telephone equipment causes harm to the telephone network, the telephone
company can discontinue your service temporarily. If possible, the company will
notify you in advance. But if advance notice isn’t practical, you will be notified as
soon as possible. Y ou will be informed of your right to file a complaint with the FCC.

Your telephone company can make changes in its facilities, equipment, operations,
or procedures that could affect the operation of your equipment. If so, you will be
notified in advance so you can make the changes needed to maintain uninterrupted
service.

If you experience trouble with this equipment, please contact the manufacturer at the
address given in this manual. The telephone company may ask that you disconnect
this equipment from the network until the problem has been corrected or until you
are sure that the equipment in is not malfunctioning.

DECLARATION of CONFORMITY

This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installa­tion. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful inter-

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ference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful
interference to radio and television reception, the user is encouraged to try to correct
the interference by one or more of the following measures:

• Reorient the receiving antenna.

• Increase the separation between the equipment and 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.

CA UTION: CHANGES OR MODIFICATIONS NOT EXPRESSL Y
APPROVED BY THE P AR TY RESPONSIBLE FOR COMPLIANCE
COULD VOID THE USER’S AUTHORITY TO OPERATE THE
EQUIPMENT.

CANADIAN DEPAR TMENT OF C OMMUNICATIONS (CDOC):

Requirements for End Users:
Notice: The Canadian Department of Communications label identifies certified equip-

ment. This certification means the equipment meets certain telecommunications
network requirements. The Department does not guarantee the equipment will op­erate to the user’s satisfaction.

Before installing this equipment users should ensure that connection to the line is
allowed by the local telecommunications company. The equipment must also be in­stalled using an acceptable method of connection. In some cases, the company’s in­side wiring associated with a single line individual service may be extended by means
of a telephone extension cord. Compliance with the above conditions may not pre­vent degradation of service in certain situations.

Repairs to certified equipment should be made by an authorized Canadian mainte­nance facility designated by the supplier. Any r epairs or alterations made by the user
to this equipment, or equipment malfunctions, may give the telecommunications
company cause to request the user to disconnect the equipment.

Users should ensure for their own protection that the electrical ground connections
of the power utility , telephone lines, and internal metallic water pipe system, if present,
are connected together . This pr ecaution may be particularly important in rural areas.

Caution: Users should not attempt to make such connections themselves, but should
contact the appropriate electric inspection authority, or electrician, as appropriate.

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