Actiontec electronic 56K V.90 User Manual

56K V.90 PCI Voice/Fax

Windows Modem

Table of Contents

Proprietary Notice and Disclaimer .................................................................1

Introduction.......................................................................................................

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

Do This First ......................................................................................................

For Windows 95 and Windows 98 Installations ............................................. 3

For Windows NT 4.0 Installation ....................................................................4

For Windows 2000 Professional Installation..................................................5

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

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

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

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

Configuring Windows 95B ...........................................................................11

Configuring Windows 98..............................................................................13

Configuring Windows NT 4.0 .......................................................................18

Configuring Windows 2000 Professional.....................................................22

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

The Modem’s Voice Features ......................................................................2 9

Troubleshooting .............................................................................................

Windows 95/95B/98.....................................................................................31

Windows NT 4.0 ..........................................................................................34

Common Problems ......................................................................................3 5

Uninstalling the Modem ...............................................................................3 7

AT Command Set ...........................................................................................

AT Commands .............................................................................................40

AT Commands for Testing and Debugging ..................................................64

S-Registers Reference ................................................................................67

Notices..............................................................................................................

9
2
3

6

29

31

40

77

Proprietary Notice and Disclaimer

Unless otherwise noted, this document and the information herein disclosed are proprietary to Action-
tec 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.

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

1

Introduction

Thank you for purchasing the Actiontec PCI Pro 56K internal modem. The PCI P ro
incorporates the latest technology in controller-less V.90 modems for the PCI bus.
This technology improves the performance and capabilities of personal computer
fax/modems. The use of the PCI Bus frees the user from having to use an ISA slot
which is most likely already being used by another peripheral. Almost every PC has
at least one free PCI slot.

Host-based or “Windows” modems utilize your computer’s internal Central P rocess­ing Unit, or CPU to perform some of their functions. The modem’s onboar d digital
signal processing circuitry handles the most processor-intensive functions such as
V.90 and V.34 modulation, while the CPU handles more routine communications
tasks like data compression. This allows for fewer parts and greater reliability without
taxing the overall system speed. It also allows the modem greater access to memory
and disk storage space. As personal computers advance in speed and capabilities,
controller-less modems can take advantage of these improvements. Simply download
the new driver, follow the installation instructions, and reboot your system. In this
way, the performance of your modem improves as your PC hardware improves.

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

New drivers are released as need arises to insure maximum compatibility and opera­tion of your new Actiontec PCI Pro 56K internal modem. Find out about these and
other new Actiontec products at the Actiontec web site:

Action

http://www.actiontec.com

tec Customer Support

2

Do This First

Please read the following tips carefully before attempting to install your new modem.

For Windows 95 and Windows 98 Installations

Be sure to remove all other modem drivers from your operating system. To do this,
right-click M y Computer, choose P roperties from the menu that appears, then click
on the Device Manager tab. Double-click the Modems icon in the list of devices to
show the modems installed. Click once on the icon next to any modems in this list to
select them. When all of the modems are selected, click Remove.

T urn off the computer and physically r emove 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.

Restart the computer. On the taskbar, click S tart. On the Start menu, click Settings,
then click Control Panel. Double-click on the M odems icon. Select any and all listed
modems and click Remove. Shut down (rather than restart) the computer. Wait 5
seconds before turning it back on.

Figure 1: Windows 95/98 Modems Properties P anel

3

If you are going to use the Telephone Answering Machine (TAM) functions of the
modem and you are running Windows 95, you need to install a software component
called Unimodem V. If you have Windows 95 OEM Service Release 2 (Version

4.00.950 B, hereafter referred to in this manual as Windows 95B) or a later version
of Windows, this component comes standard as part of the operating system.

To find out which version of Windows 95 you are using, right-click the My Com-
puter icon on the desktop, and choose Properties from the menu that appears. If the
version of Windows 95 is 4.00.950 or 4.00.950A, go to the UNIMODEM directory
of the CD-ROM that came with your modem and right-click on the UNIMOD V .INF
icon, (this may be named UNIMODV) then click on Install.. Restart your computer
to enable the drivers.

In order to support older software, the modem will always be assigned to COM 4.
This port assignment is made by Windows based on instructions contained in the
.INF file supplied with the modem. Check Device Manager and verify that COM 4
is not listed.

Right-click on the My Computer icon, choose Properties, and select the Device
Manager tab. From the device tree, double-click the Ports [COM & LPT] icon to
expand the list of ports. COM 1 and COM 2 should be listed. If COM 4 is listed, it
is in use, it must be made available as the modem will be automatically assigned to
this port. Highlight COM 4 by clicking once on its listing in device manager, then
click Remove. Click Refresh. If the COM 4 listing returns, you have a hardware
device using the port. Reinstall the device on another COM port.

For Windows NT 4.0 Installation

Before installing your new modem, be sure to remove any modems and their drivers
from your operating system. On the taskbar, click Start. On the Start menu click
Settings, then click Control Panel. Double-click the Modems icon. Highlight the
modem you wish to remove 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.

Determine that your installation of NT 4.0 is current. Service Pack 3 (or greater),
from Microsoft, should be installed. On the Start menu, click Settings then click
Administrative Tools then click Windows NT Diagnostics. Select the V ersion folder .
Service Pack 3 (or greater) should be stated. If you do not have the latest service pack
upgrade installed, it must be obtained from Microsoft. The latest upgrade can be
downloaded from the Microsoft web site: www.microsoft.com.

4

For Windows 2000 Professional Installation

Important

Once you remove an old modem and its drivers from your system, you will need
the old modem’s driver diskette if you wish to reinstall it at a later date.

Before installing your new modem, be sure to remove any modems and their drivers
from your operating system. On the taskbar, click Start. On the Start menu click
Settings, then click Control Panel. Double-click the Phone and Modem Options
icon. Click the Modems tab to bring it to the front. Highlight the modem you wish
to remove and click Remove. Repeat this process for as many modems as you would
like to remove. Turn off the computer and physically remove the old modem. Do not
install your new modem at this time. Read and use the installation procedures that
follow.

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 cover behind one of the computer ’ s
available PCI 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 PCI 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 cover 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 7.

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 the modem be the only device connected. You should remove all other devices
from your telephone line while the modem is in use.

8

Configuring Windows 95

Step 1 Upon startup Windows 95 detects the modem and displays the New Hard-

ware Found dialog box. Click “D river from disk provided by hardware manu-

facturer” to select it, then click OK.

Step 2 If Windows asks for an installation disk, insert the modem’s installation

CD-ROM, and wait ten seconds so that windows can r ecognize the CD has
been inserted. Type the drive letter of your CD-ROM drive in the dialog
box that appears, and click OK.

9

Step 3 After the installer has copied the .INF files to the hard disk, another New

Hardware Found dialog box will appear prompting for the “Wave Device

for Voice Modem”. Click OK. (See “Do This First” for information on
UNIMODEM.INF if the following screen does not appear.)

Step 4 Click OK to copy the Wave Device .INF file from the CD-ROM Drive.
Step 5 T o determine what COM port and IR Q is assigned to the modem in Win-

dows 95, click on the Modems icon in Control P anel and select the Diag-

nostic tab. Click the COM port icon next to the modem and then click
More Info to view the modem properties. Take note of the COM port and

IRQ—these will be needed when you configure your communications soft­ware.

10

Configuring Windows 95B

Step 1 Upon startup, Windows 95 detects the modem and launches the Update

Device Driver Wizard dialog box. Insert the modem’s installaiton CD-

ROM, wait ten seconds so that the CD can be read, then click Next.

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

Finish.

Step 3 If Windows asks for an installation disk, click OK and type the drive letter

of your CD-ROM drive in the dialog box that appears and click OK.

Step 4 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 N ext.

11

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

Step 6 T o determine what COM port and IR Q is assigned to the modem in Win-

dows 95, click on the Modems icon in Control P anel and select the Diag-
nostics tab. Click on the COM port icon next to your modem and then
click More Info to view detailed diagnostic information.

Step 7 Remember this COM port number. Y ou may need this information to con-

figure your communications software.

12

Configuring Windows 98

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

the power and allow the system to boot normally.

Step 2 Windows 98 will immediately display the Add New Hardware Wizar d and

identify the modem as a “PCI Communications Device”. 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.

13

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

drivers. Click to select the 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. I nsert the modem ’ s installation CD-R OM.
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 click-

ing Next. Otherwise, the Wizard may report 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-R OM and Windows has
found the drivers, 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 “V.90 PCI Windows Modem (LHT)”. Click Next.

14

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), also known as the “Wave Device for Voice Modem”. Click

Next.

15

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.

16

Step 10 The wizard will find the correct driver on the CD-ROM and announce it is

ready to install. 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.

17

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 Panels, then click Modems. Click
the Diagnostics tab. Click on the COM port icon next to the modem to
select it, then click More Info. Windows 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

Step 1 Install your modem into an available PCI slot. (See “Do This First” for

important pre-installation information.)

Step 2 Insert your modem’ s installation CD-R OM into your computer’s CD-ROM

Drive.

Step 3 On the Start menu, click Programs, then click Windows Explorer. Navi-

gate to your CD-ROM drive. Double-click the drivers folder , then double­click the Pciwin folder . In the window that appears, double-click setup.exe.

18

Step 4 The installation utility will show a welcome panel. Click Next.

Step 5 The next step in the installation process offers an install or remove option.

Select Install new modem drivers and components. Click Next.

19

Step 6 After the installation utility has finished installing the drivers, restart your

computer to enable the drivers.

Step 7 Click on the Modems icon in the Control Panel. Verify that Windows NT

has correctly found the modem.

Step 8 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 (e.g. T CP/IP
for Internet Access).

Step 9 At the Remote Access Setup dialog box, click on Add. Select the RAS De-

vice you wish to add and Click OK.

20

Step 10 Click Continue to finish the Installation.
Step 11 After Windows NT has completed the binding process, allow Windows

NT to shut down and restart the computer.

21

Configuring Windows 2000 Professional

Step 1 Install your modem into an available PCI slot. (See “Do This First” for

important pre-installation information.)

Step 2 Insert your modem’ s installation CD-R OM into your computer’s CD-ROM

drive.

Step 3 On the Windows Desktop, right-click the icon for My Computer. On the

menu that appears, click Properties. The system properties dialog box will
appear. Click the Hardware tab to bring it to the front, then click the De-
vice Manager button.

Step 4 In Device Manager, click the plus (+) sign next to Modems to expand that

section of the listing. A listing for LT Win Modem should appear.

Note: Windows did not display anything when you started up your computer to

acknowledge the fact that you had installed a new modem. This was be­cause it recognized the modem as one corresponding with one of the ge­neric drivers that come as part of Windows 2000, in this case the “LT Win
Modem” driver . In the steps that follow we will effectively tell Windows to
use the Actiontec driver instead, which will allow you to take full advantage
of the modem’s features and capabilities.

22

Step 5 Double-click on the listing for L T Win Modem. An LT Win Modem Prop-

erties dialog box will appear. Click on the S tep Driver tab to bring it to the
front, then click Update D r iver.

Step 6 This will start the Update Device Driver Wizard. Click Next.

23

Step 7 In the dialog box that appears next (shown below) make sure “Search for a

sutiable driver for my device (recommended)” is selected then click Next.

Step 8 In the dialog box that appears next, make sure that “Specify a location” is

the only option selected, then click Next.

24

Step 9 Click Browse. Navigate to your CD-ROM drive, then double click on the

Drivers folder. In Drivers, double-click the Pciwin folder, then double-

click the Win2K folder. With the Win2k folder open in the Locate File
dialog box, click Open.

Step 10 You will be sent back to the Upgrade Device Driver Wizard, but now the

path in the Copy manufacturer’s files from: box is correct. click OK.

Step 11 You will be returned to the Upgrade Device Driver wizard and Windows

2000 will confirm the name and location of the driver. Click Next.

Step 12 Next, windows will report that the drivers have not been tested by Microsoft

for use with Windows 2000. Actiontec itself has exhaustively tested this
product for use with Windows 2000. Click Yes to continue the installation.

25

Step 13 Windows will report that the modem has been properly associated with the

new driver. Click Finish.

Step 14 Windows will return you to what was the “LT Win Modem Properties”

dialog box, now called “V.90 PCI Windows Modem (LHV) Properties.”
Click Close.

Step 15 In the dialog box that appears next, click Yes to restart your computer.

26

Confirming the Installation of the Driver in Windows 2000

Step 16 After the system has restarted, on the desktop, click Start, then click Set-

tings then click Control Panel. In Control Panel double-click the icon for
Phone and Modem Properties. The dialog box shown below will appear.

Step 17 Click the Modem tab to bring it to the front. Make sure that “V.90 PCI

Windows Modem (LHV) is listed and selected,then click Properties.

27

Step 18 In the dialog box that appears next, click the Diagnostics tab to bring it to

the front, then click Query Modem. After windows has communicated with
the new modem some A T commands and their responses will appear. Scroll
through this section of the dialog box until you see the commands and
responses displayed below.

If the displayed responses are similar to those shown above, the modem and
its correct driver have been installed correctly.

28

Installing Communications Software

If your modem came with a communications software package, it is strongly recom­mended that you use this software for your modem. Its default installation param­eters have been specially configured to work with this modem. The Users Guide for
this program can be found in Adobe Acrobat (PDF) format on the installation CD­ROM.

Some configurations are packaged without communications software. Check your
packaging to see if communications software is included.

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
VoiceView

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 the “In­stalling the Modem ” for instructions on how to determine your COM port
and IRQ settings.

The Modem’s Voice Features

This modem supports TIA IS-101 commands applicable to a Telephone Answering
Device. In order to take advantage of this feature, you will need a Sound Blaster
compatible sound card equipped with an external microphone and external speakers.
A software application which supports these TAD functions (such as the one sup­plied with the modem) is also required.

29

®

A modem based Telephone Answering Machine works by using a sound card equipped
with a microphone to record an outgoing message. This message is stored as a .wav
file which is transferred to the modem by the application program when an incoming
call is detected. The modem’s internal electronics conver ts the digital information
contained in the .wav file into an audio signal which is then sent over the phone line.
The person calling hears your outgoing message and responds with an incoming
message.

The sequence of recording an incoming message is the reverse of an outgoing mes­sage. The modem converts the audio signal into a digital format and sends it to the
application program. The application program then formats and stores the incoming
message as a .wav file. When you play back your stored messages by selecting them
from within the application program, they are sent to the sound card. You then hear
your recorded messages through the sound card’s speakers.

The default parameters of the software which came with your modem have been
specially configured to identify and use your modems voice capabilities. Even if you
have decided to use another third-party application, try your included application
first. This will allow you to test the modem and its voice functions before inv esting in
an expensive retail software package.

30

Troub leshooting

This section lists some common problems and offers suggestions for a solution. It is
important to remember that this modem is a Windows-based modem and requires
32bit virtual device drivers. It therefore cannot work in W indows 3.1 which cannot
use these drivers. The modem also cannot work in DOS regar dless of version. It is a
software installed device and has no provisions for manual configuration.

If you cannot find your particular symptom listed here, it is suggested that you re­move the modem and its drivers from the system and reinstall them again. (See
“Uninstalling the Modem” later in this section.) This provides a “clean” installation
and can cure many temporary problems. See “Do This First” for before reinstalling
the modem.

Most problems encountered during the Windows 95/98/NT installation process ar e
a result of insufficient system preparation. Make sure to physically remove any previ­ously installed modems from your system.

If your modem has installed but is not functioning, try the troubleshooting proce­dure listed below .

Windows 95/95B/98

Step 1: Check System Resour ces

On the taskbar, click Start. On the Start menu, click Settings, then click Control
Panels, and double-click the System icon. Select the Device M anager tab. F r om the

device tree, double-click the Modems icon to show what modems are installed. If
there is no Modems icon, your modem did not install (See “Does Not Install”.) If
your modem is listed, check that there is no yellow exclamation mark or red “X” over
the modem’s icon (if there is, go to step 2). If any other modems are listed, highlight
the modem by clicking once on the icon next to the listed modem and then click on
the Remove button. Turn off the system. Wait 5 seconds and turn your computer
back on and repeat step 1.

Step 2: Check Modem Pr operties

In the Device Manager tab of System Properties, double-click the Modems icon 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 under the General
tab to see if the device is working properly. Check the Device Usage area and make
sure “Disable in this hardware profile” ( Windows 95B and 98 only) or the box la­beled “Original Configuration, Current” has a check mark (for Windo ws 95 or 95A.)

31

If either of these conditions are present, correct them. Make a note of the Com port
and IRQ the modem is using. If the Device Status area shows some error message, it
will generally be about a conflict. Go to the Resources tab and read the Conflicting
Device List. If a conflict is present, click to deselect “Use automatic settings” and
select a configuration that does not cause conflicts. Manually change the IRQ set­tings if needed (see your Windows 95 or 98 on-line help file for a more detailed
discussion on changing these settings). Click the OK button. If there is no setting
free of conflicts, See “Does Not Install.”

Step 3: Modem Diagnostics

On the taskbar, click Start. On the Start menu, click Settings, then click Control
Panel and double-click the Modems icon. Y our modem should be listed. If any other

modem is listed, click once on each old modem and then click the Remove button. It
is a good idea to turn off your computer, wait 5 seconds and turn the power back on.
Return to Modems and click the Diagnostics tab. Highlight the modem by clicking
once on the COM port icon next to its listing. Now click the More Info button. You
should see the panel below.

Figure 8: More Info P anel

If you receive an error message or the panel is blank, see “Does Not Install” section.

32

Step 4: Does Not Install

The most likely reason for a non-installation in Windows 95 or 98 is a lack of IRQ
resources. The modem needs one IRQ and two I/O addressees in order to function.
Modern computer systems are usually equipped with sound card, CD-ROM drive,
Hard-drive, floppy drive, video card, two COM P orts, one LPT port, keyboard, and
a mouse. Each of these devices require at least one IRQ (interrupt) in order to func­tion.

This section deals with the process of freeing IRQ’s and configuring the system for
Plug-N-Play requiring that you know how to enter your computer system’s BIOS
Setup Routine (read your computer user’s manual for information on how to invoke
and use the BIOS setup).

Once inside the BIOS Setup, find the Plug-N-Play configuration. This can be found
within the “Advanced”, “PNP/PCI Configuration”, or “Plug and Play Configura­tion” section 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 BIOSs do not allow individual selection of interrupts to ISA, Plug-N-Play , or
PCI.) Y ou want to set this so that the PCI bus has access to this interrupt. This can be
called ICU/PCI, PCI, or PNP depending on your BIOS version and manufacturer.
Do not set this interrupt to “ISA” 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 may be
able to 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 This will often be serial port

2. This should free one IR Q for your modem to use. You may also have to disable the

COM Port in Windo ws.
Although it is possible for a PCI card to share interrupts, it is recommended that you

have one free IRQ available in your computer. The modem needs one IRQ and two
I/O Addresses to function. To check for any available interrupts in your system,
right-click on the My Computer icon, choose Properties, and select the Device Man-
ager tab. Click the Properties button to view the System Resources.

Their are 16 (0-15) interrupts available in a system. Make a note of any interrupt not
listed. To make sure that an available interrupt is assigned to the PCI bus, go to your
system BIOS Setup routine and find the Plug-N-Play settings. These are found in the
“Advanced”, “PNP/PCI Configuration”, or “Plug and Play Configuration” sections
depending on the BIOS Manufacturer.

Next, verify that one fr ee IRQ has been set so that the PCI bus has access to it. (Some

33

BIOSs don’t allow individual selection of interrupts for ISA, Plug-N-Play, or PCI.)
The interrupt settings can be called “ICU”, “ICU/PCI”, “PCI”, or “PNP depending
on your BIOS version and manufacturer. Do not set this interrupt to “ISA” only or
to “Legacy ISA”. Be sure to Save the settings before exiting the BIOS Setup.

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. When one becomes available, they take it. This situation
requires that you remove your sound card, free an interrupt, 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.

Proceed to “Installing the Modem”.

Windows NT 4.0

Windows NT installation problems are always due to inadequate preparation. The
following conditions must be meet before attempting to install the modem or it will
not be seen or correctly installed by the system. (See “Do This F irst” at the beginning
of this manual.)

• You must have the latest Windows NT Service Pack installed.

• There must be two IRQ and two I/O port Addresses available for the modem to

use.

• The installation utility must be copied from the installation CD-ROM to the

default hard drive and extracted.

If you need help on freeing an interrupt or making a COM Port available, see the
Windows 95/98 “Does Not Install” section for a discussion of this topic. The “Spe­cial Situations” and “Plug-N-Play BIOS” sections also apply to Windows NT 4.0.
See these areas for guidelines. If you are upgrading or removing the drivers, use the
installation utility on the Windows NT installation diskette that came with your PCI
modem. This utility has an option for removing the modem drivers.

If you are not familiar with changing the settings within your system BIOS setup,
you should skip the following system pre-installation procedure and go to “Installing
the Modem.” Refer back to this area only if you have a problem installing the mo­dem.

Check your system BIOS IRQ assignments and make sure that at least two interrupts
have been assigned to the PCI bus. In your system’s BIOS Setup routine, find the

34

Plug-N-Play settings. These settings can be found within the “Advanced,” “PNP/
PCI Configuration,” or “Plug-and-Play Configuration” sections depending on the
BIOS Manufacturer . Next, verify that at least two IR Qs have been set so that the PCI
bus has access to them (some BIOS don’t allow individual selection of interrupts to
ISA, Plug-N-Play, or PCI). These settings can be called ICU, ICU/PCI, PCI, or
PNP depending on your BIOS version and manufacturer. Do not set all the inter­rupts to “ISA” only or to “Legacy ISA”. Pay attention to the IR Q usage of the other
peripherals in your system. Do not reassign an interrupt that is already in use by an
ISA card to the PCI bus.

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.

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 to
have the modem ignore (not look for) the dialtone before dialing. (See Appendix A
for information on how to use AT commands.)

Communications Software Does Not W ork

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

Does the communications software support this modem? See the Installing and Con-
figuring Communications Software section.

If you are using a different software from the one 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

Issue the AT command ATE1 to the modem to enable command echo. This will let
you see what you type.

35

Can’t Connect at 56K

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

(Internet Service Provider) 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 to their service.

Check the maximum speed setting in the Modem Properties window. On the task­bar, click S tart. On the Start menu, click Settings, then click Control Panels. Double-
click the Modems icon. Highlight your modem by clicking once on the icon next to
the modem and then click the Properties button. Select the General tab and look at
the setting in the Maximum speed box. Make sure this is set to 115200.

You may have other telephone devices connected to the phone line. To help your
modem achieve the best connection possible, remove all extra devices and their cables
from the telephone line when the modem is in use. This reduces the load on your
phone line and keeps signal attenuation to a minimum.

Keep the length of your phone line cable to 10 feet or less. Don’t use an unusually
long cable to connect to the phone line socket. If necessary, move the computer
closer to the phone socket. Don ’t lay your cabling close to an electrical appliance like
a refrigerator or air conditioner unit. High current devices can transmit a 60 cycle
“hum ” to your modem thr ough the phone cor d. This may cause frequent renegotia­tions or line disconnects while the appliance is running.

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
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. The routing of the call may improv e your chances of making a 56K connec­tion.

If you are attempting to make a call from an office, are you using a direct outside line
or are you using a PBX hookup? If 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. Try using the line that is connected to a fax machine. Fax machines are usually
connected to a dedicated line and not through the PBX.

Y our phone line may not support a 56K connection. Or may support a 56K connec­tion only intermittently. There are many conditions that must be met before a 56K

36

connection can be established. The telephone company must have you connected to
the PSTN (Public Switched Telephone Network) in a particular way. The modem
you are calling must support the same protocol. The phone line must be free of
distortion and noise. The phone wiring in your house or building must be in good
condition and so on. Check to see if you have good voice communications while
talking to friends or relatives. Do their voices sound distorted? Do you hear a “hiss­ing” or “humming” sound in the background? I s there “ popping ” or “ crackling” dur­ing your call? These are phone line problems. In the case of distortion, your phone
line is bad. Humming may be due to the cabling inside your residence coming too
close to a high current appliance or you may have a cordless phone recharger base
connected to the phone line. Popping or crackling usually indicates a loose connec­tion to the outside line or water dripping on the hookup outside your house.

The drivers for your modem are constantly being refined to address problems with
compatibility, interoperability, and performance. Check the Actiontec website on a
regular basis for driver upgrades. A problem connecting to a particular provider might
be fixed by a simple software upgrade.

Uninstalling the Modem

If you are uninstalling the modem in Windows 95 or 98 in order to upgrade your
drivers or obtain a clean reinstallation, it is important to follow these directions care­fully .

When removing the drivers from a system running Windows NT, use the installation
utility. The utility has an option to remo ve your modem drivers.

Uninstalling in Windows 95 and 98

Step 1 On the desktop, right-click the My Computer icon and choose Properties

from the menu that appears. Select the Device Manager tab. D ouble-click
the Modems icon to expand the M odems section of the list. Highlight your
modem by clicking once on its icon, then click Remove.

Step 2 On the taskbar, click Start. On the Start menu, click Settings, then click

Control Panel and double-click the Modems icon. If your modem is listed,
highlight the modem by clicking once on the icon next to the modem and
then click the Remove button. Or, if the New Hardware dialog box comes
up, click Cancel.

Your modem should not be listed in the Modems section after you have
deleted it from the Device Manager. This could be a sign that your Plug-N­Play settings are not correct. See “Does Not Install” for more information
about Plug-N-Play.

37

Step 3 Close all open windows and return to the desktop. On the taskbar, click

Start. On the Start menu, click Find, then click F iles or F olders. Search for
the files listed below. Type in the name and extension (e.g. ltwave.inf) and
click the Find button. Once you find each of the files listed, highlight the
file by clicking once on the file name and then, in the Find All Files dialog
box, click to show the File menu and choose Delete. Delete all occurrences
of these files in your system.

ltcom.vxd ltwave.inf
ltmodem.vxd ltdfv.inf
ltvcd.vxd ltdt.inf
ltmodem.sys ltports.inf
ltdsvd.dll

If you cannot find a particular file, it usually means it was not installed. After all
instances of these files have been deleted, restart your system.

Note to users of Windows 95 and 98

If you are using Windows 95B (see “Do This F irst” for instructions on how to deter­mine your Windows 95 version), you need only delete the files listed. In the case of
Windows 95 or Windows 95A, there are two additional files which Windows 95 or
Windows 95A generates when installing a third-party hardware peripheral. The file
is called oem#.inf. The number (#) used is generated by Windows 95 each time
an additional piece of hardware is installed. In the case of the modem, these files
could have any number between 1 and 99--oem8.inf, for example.

Close all open windows and return to the desktop. On the taskbar, click Start. On
the Start menu, click Find, then click Files or F olders. T ype in *.inf in the N amed
box. Make sure your entire drive is selected and not just one subdirectory. Place a
check mark in the Include subfolders box. Be sure all the information is typed in as
shown below. Before beginning the search, click the Advanced tab.

38

At the Advanced settings window, type the following in the Containing text field:
V.90 PCI Windows Modem. Click Find Now.

When a file is found, it will have the name oem#.inf. To delete a file, highlight
the file name by clicking once and then choose Delete from the File menu.

Next, go to the Advanced tab and type the following in the Containing text field:
V.90_PCI_Windows_Modem as shown below.

After Windows finds the other file, delete it as before. Restart your system and follow
the installation procedures outlined in the “Installing the Modem.”

39

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 AT 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.

40

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

41

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

.gnirtslaidehtgnissecorp

.resuehtotkcabedoctluserREWSNAONa

.kooh-ffootnruternehtdna

.llaceht

.3-0sinfoegnarehT

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

8SretsigeRnideificepsemitrofesuaP.gnilaidgnirudesuaP

.gnirtslaidehtniretcarahctxenehtgnissecorperofeb

erofebenotlaiddnocesarofstiawmedoM.enotlaidroftiaW

retfaecnelisfosdnocesevifroftiaW.rewsnateiuqroftiaW

sdnesmedomeht,detcetedtonsiecnelisfI.rebmunehtgnilaid

sdnoces5.0rofkooh-noogotmedomehtsesuaC.hsalfkooH

otnruterotmedomehtsesuaC.edomdnammocotnruteR

gnitcennocsidtuohtiw,rebmunehtgnilaidretfaedomdnammoc

x=nZ&ehtgnisuderotsylsuoiverprebmunenohpeletalaiD

.)noitamrofnirehtrufrofdnammocx=nZ&ehtees(dnammoc

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.

42

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

Result Codes:

KO1,0=n

RORREesiwrehtO

43

In Request ID Information

This command displays specific product information about the modem.

dnammoCtceffE

OI)3Isaemas(.ledommedomehtsnruteR

1I .)BA21,.g.e(ETDehtnotisyalpsiddnamuskcehcMORsetaluclaC

2I

3I)0Isaemas(.ledommedomehtsnruteR

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

5I.noisrevrevirdehtsnruteR

6IKOesnopseR

7IKOesnopseR

8IKOesnopseR

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

.RORREroKOgniyalpsid

muskcehcehtseifirevdnasetaluclacdnakcehcMORasmrofreP

Result Codes:

KO9-0=n

RORREesiwrehtO

Ln Monitor S peaker Volume

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

dnammoCtceffE

0L.emulovtsewolstceleS

1L.emulovwolstceleS

2L.)tluafed(emulovmuidemstceleS

3L.emulovhgihstceleS

Result Codes:

KO3,2,1,0=n

RORREesiwrehtO

44

Mn Monitor Speaker M ode

This command turns the speaker on or off.

dnammoCtceffE

0M.ffosirekaepsehT

1M

2M.kooh-ffosimedomnehwnosyawlasirekaepsehT

3M

.)tluafed(langis

.gnilaidelihw

reirracehtstcetedmedomehtlitnunosirekaepsehT

tpecxe,detcetedsireirracehtlitnunosirekaepsehT

Result Codes:

KO3,2,1,0=n

RORREesiwrehtO

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.

0N

1N

Result Codes:

KO1,0=n

dnammoCtceffE

ekahsdnahrofsisiht,gnirewsnarognitanigironehW

73Sybdeificepsdradnatsnoitacinummocehttaylno

.dnammocBTAehtdna

ekahsdnahehtnigeb,gnirewsnarognitanigironehW

73Sybdeificepsdradnatsnoitacinummocehttaylno

otkcabllaf,ekahsdnahgniruD.dnammocBTAehtdna

.)tluafed(ruccoyamdeepsrewola

RORREesiwrehtO

45

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

46

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

47

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

48

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

49

&Bn V.32 A uto 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

50

&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

&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

51

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

Result Codes:

KO4,3,0=n

RORREesiwrehtO

&Mn Asynchronous Communications Mode

dnammoCtceffE

0M&.)tluafed(edomsuonorhcnysA

1M&.devreseR

2M&.devreseR

3M&.devreseR

4M&.devreseR

52

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

&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&

lortnocrorrePNMnafI.edomlortnocrorrePNM

kcabllaflliwmedomeht,dehsilbatsetonsilocotorp

.63Snignittesresutnerrucehtotgnidrocca

lortnocrorrerehtienfI.edomlortnocrorrePNMro24.V

kcabllaflliwmedomeht,dehsilbatsesilocotorp

.63Snignittesresutnerrucehtotgnidrocca

53

Result Codes:

KO

RORREesiwrehtO

,6,5,0=n

9,8

&Sn Data Set Ready (DSR) Option

This command selects DSR action.

dnammoCtceffE

0S&.)tluafed(NOsyawlaRSD

1S&

.sdnenoitcennocehtnehwffoseog

dnanoitcennocagnihsilbatsenehwnosemocRSD

Result Codes:

KO1,0=n

RORREesiwrehtO

&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

54

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.

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

55

&Wn Store Current 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

&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

56

\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

Result Codes:

KO.edommedomatadnidetcennocfI

REIRRACON.edommedomxafnidetcennocrodetcennoctonfI

\G Modem Port Flow Control

dnammoCtceffE

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

1G\.RORREsdnopserDETROPPUSTON

57

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

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

\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

58

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

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

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

RORREesiwrehtO

59

\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

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

Result Codes:

KO3,1,0=n

RORREesiwrehtO

60

ehtdna,detroppustonsisihT.lortnocwolfylno-STC

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

(Compatibility command)

dnammoCtceffE

0R\

derewsna

sillacenohpeletehtretfaffosilangisrotacidnigniR

Result Codes:

KO0=n

RORREesiwrehtO

\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

61

\Xn XON/XOFF Pass Through

dnammoCtceffE

0X\

1X\

)tluafed(yllacol

sretcarahc

sretcarahclortnocwolfFFOX/NOXsessecorpmedoM

lortnocwolfFFOX/NOXssapdnasessecorpmedoM

Result Codes:

KO1,0=n

RORREesiwrehtO

-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

62

-V90=x V.90 Downstream Rate and Control

Use this command to enable/disable V.90 connection and to control V.90 connec­tion rates. The command syntax is AT-V90=x. Where x is a value from the list below.

n=09V-TAetaRmaertsnwoD

0delbasid09.V

1)tluafed(etaRotuA

2s/stib00082

3s/stib33392

4s/stib66603

5s/stib00023

6s/stib33333

7s/stib66643

8s/stib00063

9s/stib33373

01s/stib66683

11s/stib00004

21s/stib33314

31s/stib66624

41s/stib00044

51s/stib33354

61s/stib66664

71s/stib00084

81s/stib33394

91s/stib66605

02s/stib00025

12s/stib33335

?09V-TA.etardetcelesehtsyalpsiddnaeulavtnerrucehtswohs

?=09V-TA)12-0(egnarehtwohs

63

%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.

dnammoCtceffE

0C%noisserpmocatadselbasiD

1C%noisserpmocatad5PNMdnasib24.VhtobselbanE

Result Codes:

KO1,0=n

RORREesiwrehtO

AT Commands f or 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

&&L Line-to-Line Loopback

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

&&R Write to/R ead from DSP RAM Location

dnammoCtceffE

-,>col<R&&TA

>lav<

>col<R&&TA>col<noitacolmorfsdaer

64

.>col<noitacoltaretsigerPSDot>lav<eulavehtsetirw

>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

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-

successful. Failure-the last data connection
failed.

tiation.

gotiation.

65

Description Example Comments
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

Near Echo Level (-dBm) 39 Measured Near Echo Level
Far Echo Level (-dBm) 60 Measured Far Echo Level
Transmit Frame Count 5000 Number of HDLC frames transmitted.

Transmit Frame Error Count 10 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-

Compression.

received constellation point and the decision
point.

dem.

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.

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.

66

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.

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.

67

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.

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.

68

S7 Connection Completion T ime-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
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 temporary 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).

69

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)

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)

70

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.

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.

71

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.

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

72

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
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.

73

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:

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.

74

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.

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
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

does not detect answer tone

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Result Code Description
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.

76

Notices

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.

This equipment may not be used on public coin service provided by the telephone
company. Connection to party lines is subject to state tariffs.

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

77

not installed and used in accordance with the instructions, may cause harmful inter­ference 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.

CAUTION: CHANGES OR MODIFICATIONS NOT EX-

PRESSLY APPROVED BY THE PARTY RESPONSIBLE FOR

COMPLIANCE COULD VOID THE USER’S AUTHORITY TO

OPERATE THE EQUIPMENT.

Canadian Department Of Communications (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.

78

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

79

80