User's Manual

3. Check if there are any other interface cards in your computer that use the same COM port address
as your modem. If so, you must set your modem to another COM port address. (Keep in mind that on
most systems, only two COM ports are available. One of them must be used as either 1 or 3, while
the other must be used as 2 or 4.) For example, if a mouse is set to COM 1, your modem should be
set to COM2 or COM4. Continue to the next step if the COM port address is OK.
4. Issue the command: AT&F&W <CR>, if a "0" or "OK" result code is displayed on the screen, your
modem is OK. Otherwise, contact your dealer for assistance.
Your Modem Does Not Dial Out
Make sure that your modem responds normally as described in section 4.1. If you can communicate through
the keyboard, check whether the modem is properly connected to the phone line.
Your Modem Does Not Connect After It Has Dialed a Phone Number
The problem may have several causes. The phone line may be too noisy or the telephone cord may be poor.
Try the line with a regular phone. Also the remote modem may not recognize your modem's baud rate.
Your Can't Transmit After You Have Connected to the Remote Modem
In this case, check the communication parameters of the remote modem, then configure your software to the
same number of data bits, stop bit, and parity.
6 - APPLICATION EXAMPLES
6.1 Dialing a Remote Modem
Command line: ATDP9WT002, (886)-7128423<CR>
This command line instruct the modem to dial a remote modem through a PBX. The modem first use pulse
dialing to dial 9 (the access code of the PBX), wait for outside dial tone, and then use touch tone dialing to
dial 002 once a one-second continuous dial tone is detected within 30 seconds, pause for 2 seconds (if
S8=2) and then dial 8867128423.
6.2 Dialing a Stored Number
Command line: AT&Z2=T03,709394<CR>
Command line: ATDS=2<CR>
The first command line store the dial string T03, 709394 to the 3rd location in NVRAM. Afterwards you
can use the second command line to dial this stored number. The dial string T03, 709394 will appear on the
screen to indicate the number being dialed.
6.3 Manual Answer an Incoming Call