Modem Features - IBM 10/100 Ethernet Mini-PCI Adapter User Manual

Modem features

Your 3Com 56K V.90 Mini-PCI modem can connect at speeds up to 56,000 bps and send
or receive faxes at speeds up to 14,400 bps. Actual download speeds might be lower due to
varying line conditions. Compatible phone line and server equipment are required. This
section contains information on the modem features.
Automatic calling-card dialing
When you make a calling-card call, your modem detects the "bong" that sounds prior to
entering your calling card number. You can set up your modem to enter your calling-card
number and automatically place your call by entering the following string in your
communications software or in the terminal mode:
ATDT <phone#>&<calling card#>
Call progress detection
An optional set of result codes informs you when:
• The telephone number you have dialed is busy
• The line has been picked up, but a modem is not answering the call
• There is no dial tone on the telephone line
• A call is coming in
These result codes, and the commands that enable or disable them are controlled by the
ATXn command. See ATXn in the Modem Commands listing, and the Result Codes
listing.
Dialing stored phone numbers
Your modem can store up to four of your most frequently called numbers (AT&Z0 through
AT&Z3). See AT&Z for storing that number and ATDS for dialing stored phone numbers
in the ATCOMS.TXT file on the IBM 10/100 Ethernet Mini-PCI Adapter with 56K
Modem by 3Com CD.
For example, if you are dialing a phone number of 123-4567, and it is the first number in a
list that you want to store, enter AT&Z0=1234567 to store the number, and enter ATDS0 to
dial it. To dial the second phone number in the list, enter AT&Z1=xxxxxxx, where xxxxxxx
is the second phone number, to store it, and enter ATDS1 to dial it.
Digital line guard
Your modem must use an analog line. If you are in an office and you do not know the type
of line that you are connecting to, check with your telephone company or telephone
administrator. If that is not possible, use a line that is connected to a fax machine or
another modem. If you have only a digital line, you might be able to request a data line
from your telephone company or telephone administrator.
If you are transmitting from a hotel, request a room with a data or standard analog
telephone line.
The 3Com 56K V.90 Mini-PCI modem is equipped with a digital line guard to protect it if
you accidentally connect to a digital phone line. If, after you connect the cables and enter
the communications software, you hear a sound and the following message displays
SEE MODEM USER REFERENCE
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IBM 10/100 Ethernet Mini-PCI Adapter with 56K Modem by 3Com User's Guide