5

USING THE MODEM

Hints for Good

Use the following information when you set up your communications software to

Connections

help your modem connect at the highest possible speed:

 

If you have call waiting, disable it. Call waiting generates a tone on the line

 

that causes results similar to static. It also causes your modem to disconnect or

 

report NO CARRIER if a call waiting signal comes when your modem is

 

connected to another modem. Call waiting is usually disabled by using *70 in

 

your dial string before the phone number, for example:

 

ATDT*70 151217288528

 

Contact your phone company if you need more information.

 

Telephone lines with static or noise slow down transmission and require error

 

correction. If your phone line has a problem with noise, contact your telephone

 

company to see if they can fix the problem.

 

Don’t use a splitter on your telephone line. A single connection from wall to

 

modem produces the highest transfer speed.

 

If the modems do not connect during the handshake, try disabling error

 

correction (use the AT command AT/N0). You can also try disabling data

 

compression (AT/C0).

 

 

Software Settings

Communications software setup requires information about the modem to make

 

a call or send a fax using the modem. Enter the following settings with the

 

modem software you are using:

 

Select the highest transmission speed or baud rate listed, up to 115,200 bps

 

Select fax Class 1

 

Select NONE for parity

 

Select a word length of 8

 

Set the stop bits to 1

 

Select either Hayes-compatible, Generic 28.8, or Generic 33.6 modem.

 

 

Setup for

Virtually all data or fax communications software packages will work if set up

Communications

correctly for your modem. Read and follow the software installation and setup

Applications

instructions supplied with your communications application.

 

If the LAN+Modem card is listed in your communications software, the correct

 

initialization strings will be used. If the correct modem does not appear on the list,

 

use the generic 28.8 or 33.6 modem setting.

Page 29
Image 29
3Com PC Card manual Hints for Good, Connections, Software Settings, Setup for, Communications, Applications