Ultratec Network Card INTELE MODEM User Manual

HOW TO USE YOUR  
INTELE-MODEM  
305-008800  
 
CONTENTS  
Contents  
i
1
2
3
Introduction  
Quick Guide  
How to Set Up Your Intele-Modem  
Equipment you need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3  
Setting Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3  
How to Use Your Intele-Modem  
4
Intele-Menu command set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4  
Hayes command set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4  
Talking to the modem vs. another computer or TTY . . . . . . . .4  
Command mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4  
On-line mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4  
How to switch between modes . . . . . . . . . . . . . . . . . . . . . . . . . .4  
Calling with Intele-Menu Commands  
5
General procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5  
Step-by-step instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5  
Special situations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6  
Answering with Intele-Menu commands . . . . . . . . . . . . . . . . . .7  
Changing communication settings . . . . . . . . . . . . . . . . . . . . . . .7  
Setting Up Auto-Answer  
8
The Intele-Menu Command Set  
9
How to use the commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9  
What each command does . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10  
Telephone functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10  
Communication settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Message functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12  
Auto-Answer functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13  
Calling with Hayes Commands  
14  
How to call another computer or a TTY . . . . . . . . . . . . . . . . . .14  
How to answer a call from a computer or TTY . . . . . . . . . . . .15  
How to change communication settings . . . . . . . . . . . . . . . . . .15  
Setting up Auto-Answer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15  
Complete Hayes Commands  
16  
How to type commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16  
Default settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16  
Primary commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16  
What each command means and how to use it . . . . . . . . . . . .17  
Problems and Solutions  
21  
Appendices  
22  
A - Specifications and Service . . . . . . . . . . . . . . . . . . . . . . . . . .22  
B - Modem Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24  
C - Intele-Menu Help Menu . . . . . . . . . . . . . . . . . . . . . . . . . . .25  
D - ASCII Character Table . . . . . . . . . . . . . . . . . . . . . . . . . . . .26  
CONTENTS • I  
 
II • CONTENTS  
 
INTRODUCTION  
Modems are everywhere these days, tying together millions of computers via the telephone  
lines. A modem can also be found at the heart of each TTY (text telephone) used by people  
who are deaf or hard of hearing. But not all modems are alike, nor can they all talk to  
each other. Computer modems use ASCII code and most TTYs use Baudot code. Without  
the Intele–Modem, these codes are not compatible.  
The Intele–Modem’s specialty is allowing computers to talk to TTYs. It listens to one type  
of code and converts it to the other. The Intele-Modem can also send and receive in ASCII  
code. Your Intele–Modem can communicate with any 110- or 300-baud ASCII device,  
including TTYs which use ASCII code. (The baud rate is how fast a code travels over the  
phone line.) In Baudot, the Intele-Modem can use either the American standard of 45 baud  
or 50 baud.  
The Intele-Modem is Hayes-compatible. This means you can use Hayes commands (also  
called AT commands) to control your modem. The Intele–Menu command set makes it easy  
to dial numbers, answer incoming calls, set up Auto-Answer, or change any of the  
Intele–Modem’s settings.  
The Intele–Modem also features automatic detection of both Baudot and ASCII calls. It  
works with commercially available communications and bulletin board software. Front  
panel lights indicate the current operating mode and line status. Screen messages signal  
call progress by telling you if there’s a dial tone, and if the other phone is busy or if it’s  
ringing.  
In many situations, your communication software will take care of making your calls. You  
won’t need to send commands directly to your modem. However, when you do need to  
control the modem, you have your choice: Ultratec’s Intele–Menu commands or standard  
Hayes commands.  
INTRODUCTION • 1  
 
QUICK GUIDE  
Where to find more  
information  
How to make a call  
1. Set up your Intele–Modem and  
computer and turn them on.  
How to Set Up Your  
Intele–Modem, page 3.  
2. Load your communications  
software.  
Calling with Intele–Menu  
Commands, page 5.  
3. Press the Escape Key and the  
Spacebar.  
4. Type ? to list the menu of  
commands on your screen.  
5. Type D and the number you’re  
calling.  
6. When you connect, begin your  
conversation.  
7. Press the Escape Key and type  
H to hang up.  
How to answer a call  
1. Set up your Intele–Modem and  
computer and turn them on.  
How to Set Up Your  
Intele–Modem, page 3.  
2. Load your communications  
software.  
3. Press the Escape Key and the  
Spacebar.  
Answering with  
Intele–Menu Commands,  
page 7.  
4. Type ? to list the menu of  
commands on your screen.  
5. Type A while the phone is  
ringing.  
6. When you connect, begin your  
conversation.  
7. Press the Escape Key and type  
H to hang up.  
2 • QUICK GUIDE  
 
HOW TO SET UP YOUR INTELE–MODEM  
Equipment you need ________________________________________  
The place where you set up your computer and modem should have several electrical  
outlets and a telephone wall jack within five or six feet.  
CAUTION: The Intele–Modem is designed for standard telephone lines, and it  
will not work with a computerized telephone system such as a PBX.  
Connecting the modem to a non-standard phone line may damage your  
telephone system or Intele–Modem, and will void the warranty. If you have  
questions, contact your phone system installer.  
The Intele–Modem.  
The Intele–Modem comes with AC power and telephone cords.  
A personal computer or a computer terminal or workstation.  
You can use an IBM or IBM-compatible, Macintosh or other brand of computer. You can  
also use a terminal designed for connection to a mainframe or network, as long as you  
have the right software. The serial com port setting must be: 300 BAUD, 8N1, No Flow  
Control (No Software Flow Control).  
A telephone line.  
Don’t use a party line or a line that’s part of a multiple-phone system, such as a PBX. Use  
a standard, analog telephone line. A telephone is optional.  
A communications software program.  
There are many different programs that will work. Any program that provides for  
“terminal emulation” will do. If in doubt, ask your computer store or microcomputer user  
group for the software that works best with your computer.  
A cable to connect your Intele–Modem to your computer.  
You need a cable with a connector for the modem on one end and the right connector for  
your computer on the other. Computers have many different kinds of connectors. Standard  
cables for IBM-compatible and Macintosh computers are available from Ultratec.  
Setting up _________________________________________________  
Intele–Modem  
back panel  
ON  
LINE  
PHONE  
RS-232C  
REMOTE VOLUME PWR  
1. Be sure the Intele–Modem “ON” switch is pushed to the right (the off  
position). The switch is on the back panel. Plug the AC power cord into the  
PWR (power) jack. Plug the other end into an electrical outlet.  
2. Plug one end of the Intele–Modem computer cable into the RS-232C port on  
the back of your Intele–Modem. Plug the other end into the serial port of  
your computer (sometimes called the RS–232C port).  
3. Telephone hook-up. Plug the telephone cord into either one of the telephone  
jacks on the back of the Intele–Modem. Plug the other end of the cord into a  
telephone wall jack. To connect a phone to the same line, plug the telephone  
cord into the second jack on the Intele–Modem’s back panel.  
HOW TO SET UP YOUR INTELE-MODEM • 3  
 
HOW TO USE YOUR INTELE–MODEM  
1. Connect all the hardware.  
2. Turn on your computer and load your communications software. If you need  
more information on these first two steps, see page 3.  
3. Turn on your Intele–Modem.  
4. Use your software to dial or answer a call. Your software will also allow you  
to change settings that determine how the modem operates. See your  
communications software instructions for more information.  
The rest of the information in this guide is for those who need to directly control their  
modem. To do so, follow the above steps to enter terminal mode. Then, choose the  
Intele–Menu command set or the Hayes command set. You must use one command set or  
the other—you can’t intermix the two.  
Intele–Menu command set ___________________________________  
This is a special set of commands created by Ultratec to simplify controlling your  
Intele–Modem. When you type your computer’s Escape Key followed by the Spacebar after  
turning on the modem, the modem will display this line on your computer monitor:  
Command (Press ? for help):  
All commands are issued from this Command Line (see page 5).  
Hayes command set _________________________________________  
These are standard commands used by most computer modems. Ultratec has added  
several special commands for use with Baudot code (see page 14).  
Talking to the modem vs. another computer or TTY______________  
No matter which command set you use, your Intele–Modem operates in two modes.  
Issuing commands is done in command mode, whereas the actual communication with  
another person takes place in on-line mode.  
Command mode ____________________________________________  
In command mode your modem receives instructions from you via the computer keyboard.  
Sometimes command mode is referred to as “local” or “off-line” mode because you are  
talking to the modem itself, rather than to another computer or TTY.  
On-line mode_______________________________________________  
In on-line mode, your modem serves as a bridge between your computer and another  
computer or TTY, transmitting the messages that you and the other person type back and  
forth.  
How to switch between modes________________________________  
How you switch modes depends on which command set you’re using. If you’ve using  
Intele–Menu commands, use the Escape Key to enter command mode. After you’ve typed  
the command you want, use the Enter Key to return to on-line mode.  
If you’re using the Hayes Command Set, use the “escape sequence” to enter command  
mode. This is the escape sequence: wait until no characters have been typed for at least  
one second, type the + Key three times in a row (like this: +++), and then wait another  
second. When you’re in command mode, switch back to on-line mode by issuing an ATO  
command.  
4 • HOW TO USE YOUR INTELE-MODEM  
 
CALLING WITH INTELE–MENU COMMANDS  
General procedure __________________________________________  
Set up your hardware, turn on the computer and modem, and load your communications  
software. Enter terminal mode. The communications program instructions will show you  
how to get into terminal mode (sometimes called “talk” or “on-line” mode).  
1. Press the Escape Key and then the Spacebar to enter command mode. The  
Intele–Modem will display the following prompt on your computer screen:  
Command (Press ? for help):  
2. Type the letter or number for the command you want (or type ? to see the  
Help Menu). Commands are described starting on page 9.  
3. Press the Enter Key to return to on-line mode and carry on your  
conversation.  
If you don’t see the Command Line when you press the Escape Key and the Spacebar, try  
typing ATZ first. See the Problems and Solutions section on page 21 for more information.  
Step-by-step instructions_____________________________________  
Modem settings  
When you follow these instructions, you will be using the following modem settings:  
• Automatic communication mode. The modem will use either ASCII or  
Baudot code, depending on what it receives from the other computer or TTY.  
• Half-duplex  
• Pulse dialing  
Instructions  
1. Turn on your computer.  
2. Start up your communications software.  
3. Turn your Intele–Modem on. The POWER, BDT, and LO lights on the front  
panel of your modem will go on.  
Turning on the  
INTELE-MODEM  
Intele–Modem lights  
POWER  
BDT ASC  
CODE  
HI LO  
SPEED  
CD RXD TXD  
COMMUNICATION  
OH SIG  
PHONE  
the Power, Baudot and  
Low Speed indicators.  
4. Follow your software instructions to get into terminal mode.  
5. Press the Escape Key and the Spacebar.  
6. Type D and the telephone number you want to dial. If you make a mistake,  
use the Backspace Key to make corrections.  
CALLING WITH INTELE-MENU COMMANDS • 5  
 
7. Press the Enter Key. The modem will dial the number. The OH (Off-hook)  
and SIG (Signal) lights will go on.  
INTELE-MODEM  
Dialing a number  
lights the Off-Hook and  
Signal indicators.  
POWER  
BDT ASC  
CODE  
HI LO  
SPEED  
CD RXD TXD  
COMMUNICATION  
OH SIG  
PHONE  
If the modem can’t dial the number, you’ll see NO DIAL TONE on your  
screen. The modem will hang up and the Command Line will reappear on  
the screen.  
If the line is busy, the modem will hang up and display BUSY on the screen.  
If dialing succeeds, you’ll see RINGING on the screen. When the number  
answers, you’ll see one of two responses on your screen:  
CONNECT - the modem has connected to another computer or TTY and is using  
ASCII code. The CD (carrier detect), ASC (ASCII code), and either the HI or LO  
lights will all come on.  
A computer or ASCII  
INTELE-MODEM  
TTY connection. HI  
POWER  
BDT ASC  
CODE  
HI LO  
SPEED  
CD RXD TXD  
COMMUNICATION  
OH SIG  
PHONE  
lights when it’s 300  
baud.  
CONNECT TTY - the modem has connected to a TTY and the TTY has sent a  
message in Baudot code. The BDT, OH, and LO or HI lights will stay on. The  
SIG light will go on when either you or the caller type  
.
A TTY connection at  
45 baud lights the  
Baudot and Low Speed  
indicators.  
INTELE-MODEM  
POWER  
BDT ASC  
CODE  
HI LO  
SPEED  
CD RXD TXD  
COMMUNICATION  
OH SIG  
PHONE  
If the only response you see is RINGING, no one is answering. Hang up by  
pressing the Escape Key followed by the H Command. Return to on-line mode by  
pressing the Enter Key.  
8. When you see one of the connect messages, go ahead and start your  
conversation. You’ll see the RXD (Receive Data) and TXD (Transmit Data) lights  
flashing as you send and receive messages in ASCII code. If you’re using Baudot  
code, the SIG (Signal) light will also flash.  
If you don’t see what you’re typing on the computer monitor, change your duplex  
setting to half-duplex. Type the Escape Key, then the F Command and the Enter  
Key.  
9. To hang up when you’re done, press the Escape Key and H. You can also hang up  
by turning off your Intele–Modem.  
Special situations ___________________________________________  
The above description assumes that your modem is in automatic mode (set with the 1  
Command). If the modem is set to ASCII, and no carrier signal is detected after 30 seconds, you  
will read NO CARRIER and your modem will hang up.  
The description also assumes that your modem is set to half duplex. If you see double  
characters on the screen when you type (lliikkee tthhiiss), change to full duplex.  
6 • CALLING WITH INTELE-MENU COMMANDS  
 
Answering with Intele–Menu commands ________________________  
You may answer both computer and TTY calls the same way. The Intele–Modem searches  
incoming signals and switches to either 300-baud ASCII code or 45-baud Baudot code,  
whichever is correct. If the caller uses ASCII code, the Intele–Modem will be in answer  
mode at half-duplex.  
1. Turn your computer on.  
2. Start up your communications software.  
3. Turn your Intele–Modem on. The POWER, BDT, and LO lights on the front  
panel of your Intele–Modem will go on.  
4. Follow your software instructions to get into terminal mode.  
5. Press the Escape Key and the Spacebar. The Intele–Modem responds with  
the Command Line:  
Command (Press ? for help):  
If the phone is ringing, the SIG light will go on with each ring. The modem  
will also display the response RING on the monitor. Type A (the answer  
command). Your Intele–Modem will pick up the phone and send an ASCII  
answer tone for a few seconds. You’ll see the OH, ASC, and HI lights all  
come on. If it doesn’t connect with another ASCII computer or TTY, it will  
wait to receive a Baudot code. The ASC and HI lights will go out and the  
BDT and LO lights will come on.  
6. If the CD (carrier detect) light goes on and you read CONNECT on your  
monitor, your Intele–Modem has connected with a computer, and is  
communicating in ASCII code.  
A computer or ASCII  
INTELE-MODEM  
TTY connection. HI  
POWER  
BDT ASC  
CODE  
HI LO  
SPEED  
CD RXD TXD  
COMMUNICATION  
OH SIG  
PHONE  
lights when it’s  
300 baud.  
You won’t know for sure if you’ve connected in Baudot code until the other  
person types a message to you. When he or she starts typing, the SIGNAL  
light will go on. You’ll read CONNECT TTY on your monitor, which means  
your Intele–Modem has connected with a TTY, and is communicating in  
Baudot code.  
A Baudot call is  
indicated by the BDT  
INTELE-MODEM  
light. If the call is at 45  
baud, the LO indicator  
also lights.  
POWER  
BDT ASC  
CODE  
HI LO  
SPEED  
CD RXD TXD  
COMMUNICATION  
OH SIG  
PHONE  
7. Continue your conversation.  
8. To hang up, type the Escape Key then the H Command.  
Changing communication settings _____________________________  
To change communication settings during a call, such as changing from half-duplex to full-  
duplex, use the Escape Key to enter command mode. When you see the Command Line,  
type the letter of the setting you want to change. If you don’t know which command to use,  
type ? to use the menu. After you change the setting, use the Enter Key to return to on-  
line mode.  
CALLING WITH INTELE-MENU COMMANDS • 7  
 
SETTING UP AUTO-ANSWER  
When you’re away, your Intele–Modem can automatically answer your TTY or computer  
calls for you. Use Intele–Menu commands to set-up Auto-Answer.  
1. Turn your computer on, and load your communications software. Follow  
your software instructions to get into terminal mode.  
2. Turn on your Intele–Modem.  
3. Press the Escape Key and the Spacebar.  
4. When you see the Command Line, type the R Command. You’ll see the  
following prompt:  
Enter # of rings (0-255):  
Type a number greater than 0 and press the Enter Key.  
5. If you want to enter an Auto-Answer message, do it by typing the M Com-  
mand. You’ll see the following prompt:  
Enter new AA message? (Y/N)  
Type Y for Yes. The modem responds with:  
Enter new answer message ... Press ESC to end message  
Type your message. Press the Escape Key when you’re finished. You will  
return to the Command Line.  
6. Type the Z Command. You’ll see the message:  
Auto-Answer on ... Press any key to abort  
When it answers the phone, the Intele–Modem will respond in 300-baud ASCII code or 45-  
baud Baudot code, whichever matches the signals received from the incoming call. If you  
have saved an Auto-Answer message, it will send the message automatically after it  
answers the phone. After sending the message, it will wait for someone to start typing.  
When you or the caller hang up, the Intele–Modem will hang up and return to waiting for  
another call. (Note that if you want to save incoming messages, you must do so with your  
communications software. The Intele–Modem doesn’t do this.)  
There is one difference between an ASCII and a Baudot connection in Auto-Answer mode.  
In ASCII, as soon as the modem loses the ASCII carrier tone, it will hang up. In Baudot, it  
will wait 30 seconds after it has heard the last Baudot character and then hang up.  
8 • SETTING UP AUTO-ANSWER  
 
THE INTELE–MENU COMMAND SET  
This section contains a complete description of each of the Intele–Menu commands. See  
page 5 for step-by-step instructions for how to make a phone call.  
How to use the commands ___________________________________  
All commands are entered at the Command Line. When you turn on the Intele–Modem  
and press the computer’s Escape Key, you’ll see this message on your computer screen:  
Press the SPACE bar to use Intele–Menu command set  
Pressing the Spacebar tells the modem you want to use Intele–Menu commands. The  
modem responds by displaying the Command Line on the screen. It looks like this:  
Command (Press ? for help):  
The modem is waiting for a command from you. It’s also telling you that if you type ? you’ll  
see the help menu. The help menu is shown below.  
======== TELEPHONE FUNCTIONS ================= COMMUNICATION SETTINGS =======  
||  
D–Dial telephone  
|| 1–Communication code (AUTOMATIC)  
|| 2–BAUDOT speed(45)  
|| 3–ASCII speed (300)  
A–Answer telephone  
H–Hang-up telephone  
T–Tone/Pulse dialing  
(PULSE)  
|| O–Originate/Answer  
|| F–Full/Half Duplex  
|| E–Echo ON/OFF (ON)  
|| I–Hi sensitivity  
||  
(ANSWER)  
(HALF)  
========= MESSAGE FUNCTIONS =========  
(OFF)  
N–Enter new message  
L–List message  
S–Send message  
( 0 chars) ||  
|| C–Current communication settings  
|| Q–Quit to ‘AT’ command mode  
======= AUTO-ANSWER FUNCTIONS =======  
Z–Turn Auto-Answer on  
||  
|| ====================================  
||  
V–View AA message  
M–Enter new AA message  
( 0 chars)  
|| © Copyright ULTRATEC Inc. 1989  
||  
R–Set # of rings  
( 0 rings)  
||  
||  
Version ITM061694  
=============================================================================  
Press ENTER to go ONLINE  
Command (Press ? for help):  
Each letter or number listed on the help menu is a command which will change how the  
modem operates. Don’t worry, you won’t have to use all the commands every time you  
make a phone call! After things are set up, most calls won’t need any changes.  
THE INTELE-MENU COMMAND SET • 9  
 
What each command does ___________________________________  
Many of the commands have several settings. For example the Communication Code has  
three possibilities. It can be set to Automatic code detect, Baudot code, or ASCII code.  
When you turn the modem on, the Communication Code is set to Automatic code detect.  
Each time you type the command, it changes to the next setting. It will change to Baudot  
code the first time. The next time to ASCII code. The next time after that it will change  
back to Automatic code detect, and so on.  
If the command has a default setting, it’s shown in parentheses after the name of the  
command. Commands are listed below in the order they appear on the Intele–Menu help  
menu.  
Telephone Functions_________________________________________  
D–Dial telephone  
A–Answer telephone  
Use this command to place a call.  
When you enter D at the command  
prompt, you’ll see the following  
prompt:  
Use this command to answer a call.  
When you type A at the Command  
Line, the modem answers the phone  
and waits. You’ll see the following  
message:  
Enter # to dial:  
Answering…  
Type in the number, followed by the  
Enter Key. Include the area code if  
needed. The Intele–Modem will dial  
using either tone or pulse dialing,  
depending on how the T command is  
set. You can include parentheses and a  
dash in the number, although they’re  
not necessary. Type a comma within  
the phone number to get a two-second  
pause in dialing. Use as many commas  
as you need–each one equals two  
seconds. Examples of correct entries  
are:  
If the caller is using ASCII, you’ll see  
the response CONNECT. If the caller  
is using Baudot, you won’t see any  
response until you begin your  
conversation. Then you’ll see  
CONNECT TTY.  
H–Hang-up telephone  
Typing H at the Command Line will  
hang up the phone. The modem will  
respond with Hanging up phone line  
and the Command Line will return.  
T–Tone or pulse dialing (The default is  
Pulse)  
Typing T changes the way the modem  
dials a number. The default setting is  
pulse dialing. Typing T at the  
1 (608) 255-1212  
1-608-255-1212  
16082551212  
9,16082551212  
9,,16082551212  
Command Line changes the setting to  
tone dialing. Each time you use the  
command, it switches back and forth  
between pulse and tone dialing.  
10 • THE INTELE-MENU COMMAND SET  
 
Communication Settings _____________________________________  
1–Communication code (The default is  
Automatic code detect)  
O–Originate/Answer (The default is  
Answer mode)  
This command has three possible  
settings: Automatic code detect, Baudot  
code, and ASCII code.  
This command has two settings: Origi-  
nate and Answer. It applies only to  
ASCII code communication. It has no  
effect when using Baudot code.  
Automatic code detect–The modem  
automatically matches the caller’s  
code. If he or she is using ASCII, the  
Intele–Modem uses ASCII. If the call is  
in Baudot code, the modem uses  
Baudot.  
Originate–When the modem is using  
ASCII code, it sends out an ASCII  
originate tone.  
Answer–When the modem is using  
ASCII code, it sends out an ASCII  
answer tone.  
Note that while Automatic code detect  
can switch codes automatically, it  
cannot switch speeds. If you get a call  
in ASCII code at 110 baud, press the  
Escape Key to enter command mode,  
type 3 to switch to 110 baud, and press  
Enter to return to on-line mode.  
Similarly, if you get a call in Baudot  
code at 50 baud, use the 2 Command to  
switch speeds.  
F–Half- or Full-duplex (The default is  
Half-duplex)  
This command has two settings: Half-  
duplex and Full-duplex. When you type  
a letter or number on your computer,  
this command determines how that  
character is displayed on the screen.  
Half duplex–When the code for a typed  
character is sent to the modem, the  
modem sends it to the other computer  
or TTY and also sends it back to your  
computer for display on the screen.  
Baudot code–The modem uses Baudot  
code only. The 2 Command determines  
whether it uses 45 baud or 50 baud.  
ASCII code–The modem uses ASCII  
code only. The 3 Command determines  
whether it uses 110 baud or 300 baud.  
Full duplex–The Intele–Modem sends  
the character code to the other  
computer or TTY only. It’s the  
responsibility of the other computer to  
send the code back for display on your  
screen.  
2–Baudot speed (The default is 45  
baud)  
This command has two settings: 45  
baud and 50 baud.  
45 baud–When the modem is using  
Baudot code, it sends and receives at  
the rate of 45 baud.  
This command is useful if you get  
double characters on your screen. You  
can set the F Command to full- or half-  
duplex in both ASCII and Baudot  
codes. For more information, see the  
Problems and Solutions section on  
page 21.  
50 baud–When the modem is using  
Baudot code, it sends and receives at  
the rate of 50 baud.  
E–Echo on/off (The default is Echo On)  
3–ASCII speed (The default is 300  
baud)  
This command has two settings: 110  
baud and 300 baud.  
110 baud–When the modem is using  
ASCII code, it sends and receives at  
the rate of 110 baud.  
This command has two settings:  
Character Echo On and Character  
Echo Off. It determines whether the  
letters you type to issue commands to  
the modem appear on the screen or  
not. It has no effect in on-line mode.  
Character Echo On–When you type a  
command, it is displayed on the screen.  
300 baud–When the modem is using  
ASCII code, it sends and receives at  
the rate of 300 baud.  
Character Echo Off–When you type a  
command, it is not displayed on the  
screen.  
THE INTELE-MENU COMMAND SET • 11  
 
I–Hi sensitivity (The default is Hi  
Sensitivity Off)  
This command controls the  
Intele–Modem’s E.A.R.S. (Enhanced  
Acoustic Reception System™) feature.  
It has two settings: Hi Sensitivity On  
and Hi Sensitivity Off. It only applies  
to Baudot communication. It has no  
effect in ASCII mode.  
C–Current communication settings  
This command displays the Communi-  
cation Settings section of the help  
menu. When you type C Command,  
you’ll see the listing shown below. The  
current settings are in parentheses.  
Q–Quit to ‘AT’ command mode  
This command quits the Intele–Menu  
command set. You can re-enter by  
pressing the Escape Key.  
Hi Sensitivity Off–This is the normal  
setting for TTY conversations.  
Hi Sensitivity On–This setting turns  
on Hi Sensitivity, which improves TTY  
conversations when you have a weak  
telephone connection or other TTY that  
is out of tune.  
=== COMMUNICATION SETTINGS ===  
1–Communication code (AUTOMATIC)  
Typing C at the  
Command Line  
displays all of the  
communication  
settings.  
2–BAUDOT speed  
3–ASCII speed  
(45)  
(300)  
O–Originate/Answer (ANSWER)  
F–Full/Half Duplex (HALF)  
E–Echo ON/OFF  
(ON)  
I–Hi sensitivity  
(OFF)  
Message Functions __________________________________________  
Message Functions allow you to type and store a message and send it later. Note that  
there are two separate message areas. The Message Functions area is for a message you  
want to save and send later. The Auto-Answer message area contains a completely  
different message. Any message you save in either area is kept as long as the modem is  
on. When you turn off the power, messages are erased.  
following prompt:  
N–Enter new message  
When you type N at the Command  
Prompt you’ll see:  
--------- (# chars) ----------  
(# chars) is the number of characters in  
your message.  
Enter new message (Y/N)  
Typing Y for Yes allows you to enter a  
new message. Typing N for No returns  
you to the Command Line and  
preserves any message you’ve already  
saved. You’ll see the following prompt  
when you answer yes:  
L–List message (0 chars)  
This displays the message on the  
screen. When you save a message, (0  
chars) will change to the number of  
characters in the message.  
S–Send message  
Enter new text message ... Press  
ESC to end message  
Send your message at any time during  
a conversation by pressing the Escape  
Key (to enter command mode) and  
then typing the S Key. It doesn’t  
matter whether you’re using Baudot or  
ASCII code.  
Your message can be up to 240  
characters long. Press the Escape Key  
when you’re finished. You’ll see the  
12 • THE INTELE-MENU COMMAND SET  
 
Auto-Answer Functions_______________________________________  
Auto-Answer functions allow you to type and save a message which will be sent  
automatically when your Intele–Modem is set to Auto-Answer. The message is kept as long  
as the modem is on. Turning it off erases any messages.  
Typing Y for Yes allows you to enter a  
new Auto-Answer message. Typing N  
for No returns you to the Command  
Line and preserves the old message.  
You’ll see the following prompt when  
you answer yes:  
Z–Turn Auto-Answer on  
When you type this command, you’ll  
see the following message:  
Auto-Answer on ... Press any key  
to abort  
The modem is now waiting for a call.  
When someone calls, the modem will  
answer and send any Auto-Answer  
message you have saved. Note that the  
number of rings must be greater than  
0 for auto answer to work. If you type  
Z and the number of rings is set to 0,  
you’ll see the following message:  
Enter new answer message ...  
Press ESC to end message  
Your message can be up to 240  
characters long. Press the Escape Key  
to return to the Command Line. You’ll  
see the following prompt:  
--------- (# chars) ----------  
Rings must be greater than 0 to  
enter Auto-Answer!  
(# chars) tells you the number of  
characters you’ve saved.  
R–Set # of rings (The default is 0  
rings)  
This command sets the number of  
times the telephone will ring before it’s  
answered when you’re in Auto-Answer.  
When you type R, you’ll see this  
message:  
Type R and set the number of rings to  
a number greater than 0, then enter  
the Z Command again.  
V–View AA message (0 chars)  
Use this command to display any  
message you have saved in the Auto-  
Answer buffer. When you have a  
message saved, (0 chars) will change to  
show the number of characters in your  
message.  
Enter # of rings (0-255):  
Enter any number from 0 to 255.  
Remember that Auto-Answer will not  
work if you set 0 rings.  
M–Enter new AA message  
When you type M at the Command  
Prompt you’ll see this message:  
?–Help  
Type the ? Key any time you want to  
see the help menu.  
Enter new AA message? (Y/N)  
THE INTELE-MENU COMMAND SET • 13  
 
®
CALLING WITH HAYES COMMANDS  
Use the Hayes command set with your personal computer and communications software.  
If you are using a terminal or workstation type of computer, you should use the  
Intele–Menu command set described on pages 5-13. When you follow these instructions,  
you will be using the following modem settings:  
• Automatic communication mode, which means the modem will automatically  
use either 300-baud ASCII or 45-baud Baudot code, depending upon which  
code it receives from the other computer or TTY.  
• Full-duplex  
• Pulse dialing  
Each command in this section is fully described on pages 16-20.  
How to call another computer or a TTY ________________________  
1. Turn your computer on.  
2. Load your communications software.  
3. Turn your Intele–Modem on. The POWER, BDT, and LO lights on the front  
panel of your modem will go on.  
4. Follow your software instructions to get into terminal mode. Type AT and  
press the Enter Key. If everything is working right, you’ll read “OK” on your  
monitor.  
5. Type ATD, followed by the telephone number you want to dial. If you make a  
mistake, use the Backspace Key to make corrections. Press the Enter Key.  
The number will be dialed. Your dialing command will look something like  
this:  
ATD 5551212 [Enter]  
You’ll see the SIG light flash on and off when the modem dials. If the phone  
rings, you’ll see the message RINGING on your screen. If the phone is busy,  
you’ll see the message “BUSY” on the screen.  
6. When someone answers, your Intele–Modem will listen for an ASCII carrier  
tone from the other computer. If it hears the tone, you’ll read CONNECT on  
your screen. The CD and SIG lights on the Intele–Modem’s front panel will  
go on.  
If the person you’re calling answers with a Baudot TTY, you won’t see  
anything on the screen until the other person begins to type. Then you’ll see  
the message CONNECT TTY on your screen. The SIG light will flash.  
If your modem is in automatic mode (ATB Command set to 0), which is the  
default mode, it will listen indefinitely for an ASCII carrier signal or a  
Baudot code. Type the Escape Key to hang up.  
If the modem is set to ASCII 300 mode (ATB3) or ASCII 110 mode (ATB4),  
and no carrier signal is detected after 30 seconds, you will read NO  
CARRIER and your modem will hang up.  
7. After you establish a connection, you can type messages back and forth,  
send or receive files, or perform any other operations detailed in your  
communications software instructions. You’ll see the RXD (Receive Data)  
and TXD (Transmit Data) lights flashing as your modem sends and receives  
messages. If you’re using Baudot code, the SIG light will also flash; in ASCII  
mode the SIG light stays on continuously.  
If you do not see the words you type on the computer monitor, change your  
duplex setting to half-duplex.  
14 • CALLING WITH HAYES COMMANDS  
 
8. To hang up, use the escape sequence (a one-second pause, +++, and another  
one-second pause) to return to command mode. Then type the ATH  
Command. Or you can turn off your Intele–Modem.  
How to answer a call from a computer or TTY __________________  
Follow the same procedure to answer both computer and TTY calls. Your Intele–Modem  
will switch to either 300-baud ASCII code or 45-baud Baudot code, whichever is correct.  
1. Turn your computer on.  
2. Load your communications software. Follow your software instructions to  
get into terminal mode.  
3. Turn your Intele–Modem on. The ON, BDT, and LO lights on the front panel  
will come on.  
4. While the phone is ringing, type the ATA Command. Watch for the CD  
(carrier detect) light to go on. If it goes on and you read CONNECT on your  
monitor, your Intele–Modem is communicating in ASCII code.  
If you read CONNECT TTY on your monitor when the SIGNAL light goes  
on, your Intele–Modem has connected with a TTY, and is communicating in  
Baudot code.  
5. Once you establish a connection, you can go ahead with your conversation.  
6. Hang up by typing the escape sequence (a one-second pause, +++, and  
another one-second pause) to return to command mode and then use the  
ATH Command to hang up. Or turn off your Intele–Modem.  
How to change communication settings ________________________  
To change communication settings during a call, such as changing from full-duplex to half-  
duplex, type the escape sequence (one-second pause, +++, and another one-second pause)  
to enter command mode and then type the commands you want to change. Use the ATO  
Command to go back on-line.  
Setting up Auto-Answer______________________________________  
Setting the S0 register to anything greater than 0 puts the modem into Auto-Answer  
mode. However, in most situations you’ll be better off using the Intele–Menu command set  
for Auto-Answer. See page 8 for details.  
CALLING WITH HAYES COMMANDS • 15  
 
COMPLETE HAYES COMMANDS  
The Intele–Modem uses the complete industry-standard Hayes command set, except that  
there are no self-test commands. Additional commands have been added for the Baudot  
code settings. If the command has a default, it’s listed after the name of the command.  
Hayes commands are also known as AT commands because each command must be  
preceded by the letters AT. Both letters must be entered in upper or lower case (at or AT).  
The modem will not recognize an upper case A and a lower case t (At) or the reverse (aT).  
AT is also a command by itself which is used to switch from on-line to command mode.  
How to type commands______________________________________  
You must use your communications software to get into terminal (or talk) mode. Each  
command has three parts–the AT prefix, the command itself, and the Enter Key. You can  
enter each command separately after its own AT prefix:  
ATB1 [Enter]  
ATF0 [Enter]  
ATD5551212 [Enter]  
or string them together after a single AT:  
ATB1F0D5551212 [Enter]  
You can type commands in a solid string of characters, as shown above, or you can put  
spaces between command characters to make them easier to read.  
AT B1 D 555 1212 [Enter]  
If you make a mistake, use the Backspace Key to make corrections before you press the  
Enter Key.  
Press the Enter Key when you have typed all the command characters you want to use.  
When you press the Enter Key, the Intele–Modem carries out your commands.  
Default settings_____________________________________________  
When you turn your Intele–Modem on, it’s automatically set to communicate in a specific  
way, called its default settings. If a command has a default setting, it’s shown in  
parentheses after the name of the command.  
Primary Commands _________________________________________  
These are the most important commands. For complete descriptions, see the listing below.  
AT  
D
Attention  
Dial a number  
Bn  
F
Set ASCII or Baudot code and baud rate  
Full- or half-duplex mode  
Set answer or originate mode  
Answer the phone after n number of rings  
Hang up the phone  
A
S0=n  
H
16 • COMPLETE HAYES COMMANDS  
 
What each command means and how to use it__________________  
Commands are listed in alphabetical order.  
A–Answer a call  
D–Dial telephone  
Use the answer command to answer a  
call.  
Type AT followed by D to dial a phone  
number from your computer keyboard.  
Press the Enter Key to dial. For  
example:  
AT–Attention  
The AT command issued by itself is  
used to enter command mode. AT is  
also the prefix for all of the other  
commands. For example, issue the dial  
command by typing ATD.  
ATD 5551212 [Enter]  
You can specify tone or pulse dialing by  
adding T or P to the command. For  
example, to tone dial, use:  
ATDT 5551212 [Enter]  
B–Use a specific code and speed (The  
default is ATB0)  
Type P after ATD to tell your  
Intele–Modem to pulse dial. For  
example,  
The B command controls the code and  
baud rate your Intele–Modem uses to  
communicate. If you want to specify  
ASCII or Baudot code and the baud  
rate, type ATB and a number from 0 to  
4. What each number means is listed  
below:  
ATDP 5551212 [Enter]  
Typing a comma within the phone  
number causes a two-second pause in  
dialing. If you’re using your  
Intele–Modem in an office setting  
where you need to dial 9 to get an  
outside line, a pause may be needed to  
allow time to get a dial tone. Here’s an  
example:  
ATB0–Auto search. When your  
Intele–Modem answers a call, it  
automatically searches the incoming  
signals to determine what code to use.  
If it hears an ASCII signal, it stays in  
ASCII code at 300 baud. If it doesn’t  
hear an ASCII signal, the modem  
switches automatically to Baudot code  
at 45 baud.  
ATD 9,5551212 [Enter]  
You can use as many commas as you  
need. Each one equals two seconds.  
E–Echo (The default is E1)  
Echo controls how the commands you  
type to your modem are displayed on  
your computer monitor.  
Note that while Auto search can switch  
codes automatically, it cannot switch  
speeds. If a caller uses 110-baud ASCII  
code, use the ATB4 command to switch  
your modem to 110 baud. Similarly, if  
you get a call in Baudot code at 50  
baud, use the ATB2 command to match  
speeds.  
E0–Echo off. When you type a  
Command, it will not be displayed on  
the computer monitor.  
E1–Echo on. Commands are displayed  
as you type them.  
B1–Baudot code, 45 baud. Use this  
setting for making calls to TTYs in the  
United States and other countries  
which use 45-baud Baudot code.  
F–Full- or half-duplex (The default is  
full-duplex)  
Full-and half-duplex are two ways that  
the modem displays what you type on  
your computer screen.  
B2–Baudot code, 50 baud. Use this  
setting for making calls to TTYs in  
countries that use 50-baud Baudot  
code.  
ATF0–Half-duplex. In half-duplex,  
your modem sends characters you type  
to the other computer or TTY and also  
to your computer screen. If each  
character you type appears twice on  
your monitor (HHII TTHHEERREE),  
change to full-duplex. TTYs that use  
Baudot code always use half-duplex.  
See the Problem and Solutions section  
B3–ASCII code, 300 baud. Use this  
setting to make calls to computers and  
300-baud ASCII TTYs.  
B4–ASCII code, 110 baud. Use this  
setting for making calls to 110-baud  
ASCII TTYs.  
COMPLETE HAYES COMMANDS • 17  
 
on page 21 for more information.  
Sn?–Value of any S register  
F1–Full-duplex. In full-duplex, your  
modem sends the characters you type  
only to the other computer or TTY. You  
read the characters on your screen  
when the other computer or TTY sends  
them back. If typed characters do not  
appear on your monitor, change your  
setting to half-duplex.  
Use this command to find out the value  
of any of the S registers. For example,  
the command ATS1? asks the modem  
for the number of times the phone has  
rung.  
S0–number of rings (The default is  
S0=0)  
When the modem is in answer mode,  
the S0 register tells it how many rings  
to listen for before automatically  
answering the phone. You can set it for  
any number from 0 to 255.  
H–Hang up  
If you want to hang up at any time  
during or after a call, use the ATH  
Command.  
I–Product code  
The ATI Command displays a software  
revision code.  
S0=0 is the manual answer mode  
(default setting). Your Intele–Modem  
will not automatically answer the  
telephone when S0 is set to 0. If your  
modem is turned on and a call comes  
in, it will send the response RING to  
your computer monitor. You must use  
the command ATA to answer the call.  
After you answer, you will read  
M–Speaker on/off (The default is M1)  
M0–The speaker is always off.  
M1–The speaker is on until an ASCII  
carrier or a Baudot character is  
detected.  
CONNECT or CONNECT TTY when  
communication is established. If your  
modem does not establish a connection,  
press Escape to hang up and return to  
command mode.  
M2–The speaker is always on.  
N–Sensitivity (The default is N1)  
Sensitivity controls how the  
Intele–Modem listens to sounds on the  
telephone line. If your modem is  
having trouble receiving data correctly,  
set it to high sensitivity. This is an  
Ultratec addition to the standard  
command set.  
S0=1 tells the modem to Auto-Answer  
after one (1) ring.  
S0=n means Auto-Answer after n  
rings.  
Setting S0 to any number greater than  
0 has the effect of putting it into Auto-  
Answer mode. To take the modem out  
of Auto-Answer mode, set S0 back to 0.  
N0–High sensitivity  
N1–Normal sensitivity  
O–Online  
Use this command to return to on-line  
mode when you’re in command mode.  
S1–Ring count  
This register is increased each time the  
phone rings.  
Q–Quiet (The default is Q0)  
The Quiet command determines  
whether or not the modem sends its  
response messages to the computer  
monitor.  
S2–Set escape character (The default is  
S2=43, the ASCII number for the +  
character)  
The escape character is part of the  
escape sequence, which puts the  
modem in command mode. This is the  
escape sequence: Wait until data  
transmission has stopped for at least  
one second, type the escape character  
three times, then wait another second.  
Your Intele–Modem will respond with  
OK, and you can enter a command.  
Use the ATO Command to go back on-  
line.  
Q0–The modem sends response  
messages to your computer monitor.  
Q1–Response messages are not sent to  
your computer monitor.  
18 • COMPLETE HAYES COMMANDS  
 
S2=43–Escape character set to +.  
S10–Time between carrier loss and  
hang-up (The default is S10=14)  
In ASCII mode, the modem  
S2=n–Escape character set to ASCII  
character number n. Refer to the table  
of ASCII character numbers on page  
26. You can set n to any number from 0  
to 127.  
automatically hangs up when it loses  
the carrier tone. This register allows  
the carrier to disappear for a short  
period of time (perhaps due to a bad  
connection), without causing the  
modem to hang up. The value is  
measured in tenths of a second. You  
can set it for any number from 1  
(1/10th second) to 255 (25.5 seconds).  
S3–Define carriage return character  
(The default is S3=13)  
Sets the ASCII value of the carriage  
return character. You can set it to any  
value from 0–127.  
S4–Define line feed character (The  
default is S4=10)  
Sets the ASCII value of the line feed  
character. You can set it for any value  
from 0–127.  
The value for register S10 should not  
be set lower than the value for S9. If it  
is, even a momentary loss of carrier  
will cause the modem to disconnect.  
S11–Tone dialing timing (The default is  
S11=100)  
S5–Define backspace character (The  
default is S5=8)  
You can use any value from 0–32 or  
127.  
This register determines the duration  
and spacing of tones in milliseconds  
when tone dialing. The range is 50–255  
milliseconds. This has no effect on the  
speed of pulse dialing, which is fixed at  
10 pulses per second.  
S6–Set wait time before dialing (The  
default is S6=2)  
The time in seconds that the modem  
waits after picking up the phone before  
it dials. The value can be 2-255  
seconds.  
S12–Escape sequence guard time (The  
default is S12=50)  
This value is how long of a delay is  
required before and after an escape  
sequence (normally +++). The time  
between characters in the sequence  
must be shorter than this value. The  
default is 50 1/50th of a second (1  
second). The range is 20 (20/50th of a  
second) to 255 (25.5 seconds).  
S7–Set carrier detect time limit  
register (The default is S7=30)  
When you make a telephone  
connection, your modem listens for a  
carrier signal from the other computer  
or TTY. S7 allows you to set the length  
of time you want your modem to wait  
for the signal before it automatically  
hangs up the phone. You can set it to  
any number from 0 to 55.  
S13–Baudot timeout (The default is  
30)  
When your Intele–Modem is in Auto-  
Answer mode and detects a Baudot  
call, this register is the amount of time  
in seconds the modem will wait  
without detecting any code before it  
hangs up. The range is 0–255 seconds.  
This is an Ultratec extension to the  
standard command set.  
S8–change length of time of comma  
(The default is S8=2)  
The default time is 2 seconds. You can  
change it to any time from 0 to 255  
seconds.  
S9–Carrier detect response time (The  
default is S9=6)  
S14–ASCII seek time (The default is 3)  
This register sets the amount of time  
the modem must hear an ASCII carrier  
signal before it signals CONNECT. The  
value is measured in tenths of a  
second. The range is 1 (1/10th second)  
to 255 (25.5 seconds).  
This register is the amount of time in  
seconds the modem puts out an answer  
tone after it answers the phone. The  
range is 0–255 seconds. This is an  
Ultratec extension to the standard  
command set.  
COMPLETE HAYES COMMANDS • 19  
 
S15–Auto-answer abort enable (The  
default is 1)  
You can set the Intele–Modem to abort  
Auto-Answer when you press any key  
on your computer keyboard, or to  
remain in auto answer.  
X–Response message list (The  
default is X1)  
You can select the number of response  
messages listed above that you want  
your Intele–Modem to display.  
X0–Displays only response messages 0  
through 4. If you are communicating in  
ASCII only, you may choose this.  
S15=1 tells the modem to abort auto  
answer if a key is pressed.  
X1–Displays all nine response  
S15=0 tells the modem not to abort  
auto answer when a key is pressed.  
messages (default setting). Your  
Intele–Modem will tell you when you  
are connected in Baudot code by the  
response message CONNECT TTY.  
This is an Ultratec extension to the  
standard command set.  
V–Verbose or terse modem response  
messages (The default is V1)  
Z–The command to reset your  
Intele–Modem  
Your Intele–Modem can respond to  
modem commands with numbers or  
with words. The response numbers  
(terse responses) are listed below along  
with the associated word messages  
(verbose responses).  
Typing ATZ [Enter] will reset your  
Intele–Modem to the default settings  
and return to command mode. Your  
modem will respond with OK. If you  
are on-line, ATZ will also hang up the  
phone.  
V0–Your modem responds with  
numbers. For example, instead of  
reading OK you’ll read 0.  
V1–Your modem uses word responses  
such as OK.  
Terse vs. verbose responses.  
Number  
Message  
0
1
2
3
4
5
6
7
8
9
OK  
CONNECT  
RING  
NO CARRIER  
ERROR  
CONNECT TTY  
NO DIAL TONE  
BUSY  
RINGING  
TTY TIMEOUT  
20 • COMPLETE HAYES COMMANDS  
 
PROBLEMS AND SOLUTIONS  
I get double characters on my  
screen when I’m typing to the  
other computer or TTY.  
Solution: The Duplex setting controls  
the way characters are displayed on  
your computer screen. There are only  
two possible settings, Full-duplex and  
Half-duplex. Here’s how to change from  
one to the other:  
the Return Key to go back on-line. You  
can see what the speed is by watching  
the front panel lights. In ASCII code,  
the HI light means 300 baud and LO  
means 110 baud.  
Hayes commands: The B Command  
controls the modem’s speed. Use the  
escape sequence to enter command  
mode, type ATB3 to change to 300  
baud or ATB4 to set 110 baud. Type  
ATO to go back on-line.  
Intele–Menu commands: Press the  
Escape Key to enter Command Mode,  
type F to change from Half-duplex to  
Full-duplex or Full- to Half-duplex,  
and press the Return Key to go back  
on-line.  
When I press the Escape Key to  
use the Intele–Menu command set,  
the response message from the  
modem doesn’t make any sense.  
Hayes commands: Use the escape  
sequence to enter command mode, type  
ATF0 to change to Half-duplex, and  
ATO to return to on-line mode. If  
you’re already in Half-duplex, type  
ATF1 to change to Full-duplex.  
Solution: The modem is prompting you  
to press the Spacebar. Even though the  
message doesn’t make sense, pressing  
the Spacebar should solve the problem.  
When I press the Escape Key to  
use the Intele–Menu command set,  
nothing happens.  
When I’m typing to another  
computer or TTY, I don’t see  
anything on my screen.  
Solution: This problem is also corrected  
by changing the Duplex setting. Follow  
the same steps as in Problem 1.  
Solution: This may mean that your  
software has already issued Hayes  
commands to the modem in order to  
enter terminal mode. The Escape Key  
must be the first key you type after  
you turn the modem on. Try typing  
ATZ to reset the modem. If the modem  
responds with OK, press the Escape  
Key.  
Sometimes when I answer an  
ASCII call, the characters that  
come from the caller don’t make  
sense.  
Solution: If you answer a call in ASCII  
and you see “garbage” characters on  
the screen, you and the caller are  
probably at different baud rates. Try  
changing the speed.  
How do I download a file?  
Solution: Neither the Intele–Menu nor  
the Hayes command set can upload or  
download files. You have to use your  
communications software program to  
do that.  
Intele–Menu commands: The 3  
Command controls the ASCII speed  
setting. There are only two speeds:  
110-baud and 300-baud. Each time you  
type the command it switches from one  
to the other. Press the Escape Key and  
at the Command Line, type 3. Press  
My computer doesn’t have an  
Escape Key.  
Solution: Holding down the Control  
Key and typing [ (open square bracket)  
is the same as escape.  
PROBLEMS AND SOLUTIONS • 21  
 
APPENDIX A: SPECIFICATIONS AND SERVICE  
The Intele–Modem is a converting modem which works in both Baudot and ASCII codes. It  
uses either the industry-standard Hayes or AT command set with extensions to support  
TTYs or Intele–Menu commands, an alternate menu-driven command set which can be  
used with dumb terminals. The modem features automatic detection of both Baudot and  
ASCII calls. It works with commercially available communications and bulletin board  
software. Front panel lights indicate current operating mode and line status. Screen  
messages signal call progress (dial tone, busy, ringing).  
OH  
Off-hook  
AT commands supported  
A, D, E, F, H, I, M, O, Q, V, X, Z  
S registers: 0-15  
SIG  
Telephone line signal  
Back panel connections  
RJ11  
RJ11  
DB9S  
DIN 5  
Telephone line  
Telephone  
RS232C  
Additional commands to support  
TTY modes  
B0  
Automatic ASCII/Baudot detection  
(default)  
Accessory  
B1  
B2  
B3  
B4  
N0  
N1  
Baudot 45.5 baud  
Baudot 50 baud  
ASCII 300 baud  
ASCII 110  
Speaker volume  
Power jack  
On/Off switch  
RS232C connection: DB9S  
High sensitivity in Baudot  
Pin  
2
3
4
5
Signal  
TXD  
RXD  
DTR  
GND  
CTS  
Normal sensitivity in Baudot  
(default)  
S13  
Auto-Answer time-out in Baudot  
Result Codes  
Numeric  
8
Verbal  
OK  
Connect  
Ring  
No Carrier  
Error  
Connect TTY  
No dial tone  
Busy  
Ringing  
TTY time-out  
Audio Monitor: Internal speaker with volume  
control  
0
1
2
3
4
5
6
7
8
9
Compatibility: ASCII Bell 103 110/300 bps  
asynchronous; TTY Baudot 45.5 or  
50 baud; 1400/1800 Hz.  
Dialing:  
Answer:  
Tone or pulse  
Automatic or manual telephone  
answering  
Call progress: Dial tone, busy, ringing  
Receiver sensitivity: Better than -45dBm  
Transmit level: -10dBm  
Front panel lights  
Power  
BDT  
ASC  
HI  
Power on  
Baudot code  
ASCII  
Power:  
10VAC 15VA UL-approved. 115VAC  
adapter included.  
Size:  
6.3 in. (16.2 cm) wide; 1.5 in. (3.7  
cm) high; 9.5 in. (24.1 cm) deep  
300 baud for ASCII; 50 baud for  
Baudot  
Weight:  
24 oz (0.68 kg)  
LO  
110 baud for ASCII; 45 baud for  
Baudot  
CD  
Carrier detect in ASCII  
Receive data  
RXD  
TXD  
Transmit data  
22 • APPENDICES  
 
Service information  
If your modem should need repair or  
warranty service, send it to:  
National Service Center  
Ultratec, Inc.  
5901 Research Park Blvd.  
Madison, WI 53719  
Telephone: 608 238-5400 (V/TTY)  
Since Ultratec cannot be responsible  
for any damage to your unit during  
shipping, please insure it before you  
send it.  
APPENDICES • 23  
 
APPENDIX B: MODEM TERMINOLOGY  
ASCII code  
ASCII stands for American Standard Code for Information Interchange. ASCII is the  
standard communication code used by computers and ASCII TTYs in the United States  
and Canada. When modems use ASCII code to communicate, they use a carrier signal.  
After dialing a number, the calling modem listens for an answer tone. When it hears one,  
it puts out an originating tone. This tone is maintained throughout the conversation. If at  
any time the carrier tone is dropped, the modem hangs up.  
Baud rate  
The speed a code travels from one place to another in bits per second (bps). The baud rate  
for Baudot code is either 45 or 50 bps. The baud rate for ASCII code depends on the  
modem, and can be 110, 300, 1200, 2400, or higher.  
Baudot code  
Baudot code is the code used by most TTYs to communicate. Originally, Baudot code was  
used by Teletype machines in the United States to send telegrams. Baudot communication  
does not use a carrier tone. Tones are only sent when actual communication takes place.  
At other times, the line is silent.  
Bit  
The smallest piece of a communication code. An electronic signal that TTYs and computers  
can send and receive.  
Code  
A way to organize bits into meaningful information. ASCII and Baudot codes organize bits  
differently. Each letter, number, or symbol in ASCII code is described by 7 bits of  
information. In Baudot code, each character is described by 5 bits.  
Duplex, full- or half-  
Communication settings that determine how your computer displays the characters that  
are sent and received. Full duplex means that what you type is sent to the other computer  
or TTY and then sent back to be displayed on your computer monitor. Half duplex means  
that what you type is simultaneously sent to the other computer and to your computer  
monitor. See the Problems and Solutions section on page 21 for what to do if you have  
double characters or no characters at all on your screen.  
Modem  
Modems allow computers and TTYs to communicate by telephone. A modem translates the  
electronic signals of ASCII or Baudot code into sounds, and then sends the sounds over the  
telephone line. The modem for a computer or TTY determines what codes can be  
communicated (ASCII or Baudot), and how fast the codes can be sent and received (baud  
rate). TTYs have built-in modems.  
Originate and answer  
Originate and answer are ASCII code communication settings that determine how your  
TTY or computer sends and receives signals. When computers and TTYs talk to each  
other, one must be set to originate and the other to answer. When placing a call, a modem  
automatically uses originate mode. When answering a call, it uses answer mode.  
24 • APPENDICES  
 
APPENDIX C: INTELE–MENU HELP MENU  
======== TELEPHONE FUNCTIONS ================= COMMUNICATION SETTINGS =======  
||  
D–Dial telephone  
|| 1–Communication code (AUTOMATIC)  
|| 2–BAUDOT speed(45)  
|| 3–ASCII speed (300)  
A–Answer telephone  
H–Hang-up telephone  
T–Tone/Pulse dialing  
(PULSE)  
|| O–Originate/Answer  
|| F–Full/Half Duplex  
|| E–Echo ON/OFF (ON)  
|| I–Hi sensitivity  
||  
(ANSWER)  
(HALF)  
========= MESSAGE FUNCTIONS =========  
(OFF)  
N–Enter new message  
L–List message  
S–Send message  
( 0 chars) ||  
|| C–Current communication settings  
|| Q–Quit to ‘AT’ command mode  
======= AUTO-ANSWER FUNCTIONS =======  
Z–Turn Auto-Answer on  
||  
|| ====================================  
||  
V–View AA message  
M–Enter new AA message  
R–Set # of rings ( 0 rings)  
( 0 chars)  
|| © Copyright ULTRATEC Inc. 1989  
||  
||  
||  
Version ITM061694  
=============================================================================  
Press ENTER to go ONLINE  
Command (Press ? for help):  
APPENDICES • 25  
 
APPENDIX D: ASCII CHARACTER TABLE  
Dec.  
No.  
Hex  
No.  
Char-  
acter  
Keybd.  
Char  
Dec.  
No.  
Hex  
No.  
Char-  
acter  
Keybd.  
Char  
Dec.  
No.  
Hex  
No.  
Char-  
acter  
Keybd.  
Char  
0
1
2
3
4
5
6
7
00  
01  
02  
03  
04  
05  
06  
07  
08  
09  
0A  
0B  
0C  
0D  
0E  
0F  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
1A  
1B  
1C  
1D  
1E  
1F  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
2A  
NULL  
SOH  
STX  
ETX  
ET  
ENQ  
ACK  
BEL  
BS  
HT  
LF  
VT  
FF  
Ctrl-@  
Ctrl-A  
Ctrl-B  
Ctrl-C  
Ctrl-D  
Ctrl-E  
Ctrl-F  
Ctrl-G  
Ctrl-H  
Ctrl-I  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
2B  
2C  
2D  
2E  
2F  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
3A  
3B  
3C  
3D  
3E  
3F  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
4A  
4B  
4C  
4D  
4E  
4F  
50  
51  
52  
53  
54  
55  
+
,
-
.
/
0
1
2
3
4
5
6
7
8
9
:
+
,
-
.
/
0
1
2
3
4
5
6
7
8
9
:
86  
87  
88  
89  
90  
91  
92  
93  
94  
95  
96  
97  
98  
99  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
118  
119  
120  
121  
122  
123  
124  
125  
126  
127  
56  
57  
58  
59  
5A  
5B  
5C  
5D  
5E  
5F  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
6A  
6B  
6C  
6D  
6E  
6F  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
7A  
7B  
7C  
7D  
7E  
7F  
V
W
X
Y
Z
V
W
X
Y
Z
[
[
]
]
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
Ctrl-J  
Ctrl-K  
Ctrl-L  
RETURN  
Ctrl-N  
Ctrl-O  
Ctrl-P  
Ctrl-Q  
Ctrl-R  
Ctrl-S  
Ctrl-T  
Ctrl-U  
Ctrl-V  
Ctrl-W  
Ctrl-X  
Ctrl-Y  
Ctrl-Z  
ESCAPE  
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
CR  
SO  
SI  
DLE  
DC1  
DC2  
DC3  
DC4  
NAK  
SYN  
ETB  
CAN  
EM  
SUB  
ESC  
FS  
GS  
RS  
US  
SPC  
!
#
$
%
;
;
<
=
>
?
<
=
>
?
@
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
@
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
Ctrl-]  
s
t
s
t
c
n
S
!
u
v
w
x
y
z
u
v
w
x
y
z
#
$
%
&
(
)
*
&
(
)
§
DEL  
§
DELETE  
*
26 • APPENDICES  
 
FCC INFORMATION  
Your Intele–Modem complies with Part  
68 of the Federal Communications  
Commission (FCC) Rules. The label on  
the bottom of your Intele–Modem  
presents the following required  
information. If the telephone company  
requests this information, you must  
provide it.  
will notify you in advance to give you  
the opportunity to maintain  
uninterrupted service. If your  
Intele–Modem causes harm to the  
telephone network, your telephone  
company has the right to discontinue  
your service temporarily. If possible,  
they will notify you in advance. But if  
advance notice is not practical, they  
will notify you as soon as possible. You  
will have the opportunity to correct the  
situation, and you will be informed of  
your right to file a complaint with the  
FCC.  
FCC Registration Number:  
D8K7IB–10458–MD–E  
Ringer Equivalence Number (REN):  
0.4B  
Jack: USOC RJ11W  
Use a telephone company registered  
jack to connect your Intele–Modem to  
the telephone lines. Use registered jack  
type USOC RJ11C. This jack is a  
modular outlet that you can order from  
your local telephone company or  
telephone supply store.  
Your Intele–Modem generates and uses  
radio frequency energy, and may cause  
radio or television interference. Your  
Intele–Modem complies with the  
regulations for a Class B computing  
device as specified in Subpart J of Part  
15 of the FCC Rules. These rules are  
designed to minimize radio frequency  
interference in residential  
FCC rules do not permit you to connect  
your Intele–Modem to a pay telephone.  
Connection to party lines is subject to  
state regulations.  
installations.  
Use your Intele–Modem in strict  
adherence with these instructions.  
Use the Ringer Equivalence Number  
(REN) listed above to determine how  
many direct connect devices you can  
connect to your telephone line. When  
you add up the REN numbers of all the  
devices plugged into your phone line,  
including telephones, modems, and  
direct connect TTYs, the sum of the  
RENs should not be more than five.  
(This is for most areas of the country—  
contact your local telephone company  
to determine the exact maximum REN  
for your local area.) If you plug too  
many devices into your phone line,  
some of them may fail to ring when  
someone calls you.  
There is no guarantee that radio  
frequency interference will not occur  
during use. You can determine if your  
Intele–Modem causes interference to  
radio or television reception by  
disconnecting and reconnecting it  
while your radio or television is on.  
If radio frequency interference occurs,  
try to correct it by:  
re-orienting the radio or television  
receiving antenna;  
moving your Intele–Modem away from  
the receiving antenna; or  
moving your Intele–Modem away from  
the radio or television.  
The telephone company may make  
changes in its facilities, equipment,  
operations, or procedures that could  
affect the proper functioning of your  
Intele–Modem. If this happens, they  
If necessary, consult an experienced  
radio/television technician for  
additional suggestions.  
 
 

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