Audio Caller ID
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Modem Caller ID Test

If Audio Caller ID is not reporting caller ID information, your modem's caller ID feature may not be turned on, or your modem may not support caller ID.  If your modem does support caller ID, but it is just not enabled, then this is a sign you are using the wrong modem driver, or there is a bug in your modem driver.  Before trying the following, please check with your modem manufacturer for an updated driver.

To manually enable the caller ID feature of your modem you must first determine the command to enable this feature.  If you have documentation for your modem this should provide you with the command.  If you do not have documentation you can experiment with the most common commands to see which one will work with your modem.  Follow these steps to determine the caller ID enable command for your modem and to check if your modem supports caller ID:

  1. Exit any programs currently using your modem, including Audio Caller ID
  2. Download putty.exe here
  3. Run putty.exe and choose the connection type of "Serial"
  4. Enter in the COM port your modem is connected to.  (To determine this, you can open up your modem's properties dialog from the Device Manager, and look on the "Modem" tab.)
  5. Click the "Open" button to open a connection.  A new window should open.  (If you get any errors, make sure you've exited any programs using your modem.)
  6. Type "AT" (without the double quotes) and then press the Enter key. You should get a response of "OK" from your modem.  (You may not see the "AT" characters echoed back in the display.  This is okay, as long as you see the "OK" when you press the Enter key.)
  7. If you know your modem's caller ID enable command, enter it now.  If you don't, you can start experimenting.  Common enable commands are shown here:


    Type each of the above in one at a time.  After typing in each one you should either get an OK or ERROR returned from your modem.  If you get an ERROR try the next one.  If you get an OK go on to step #6.  If you never get an OK and you've tried all of these then your modem most likely does not support caller ID.

  8. Now that you've enabled the caller ID feature on your modem it is time to test it out.  Have someone give you a call and watch what information your modem outputs to Putty. If your modem supports caller ID and you've successfully enabled it, you should see something like this:


    DATE = 0720
    TIME = 2351
    NMBR = 4807050129



    If your modem is not supporting caller ID or it isn't enabled, you will see something like this:




    You should see the caller ID information come in between the first and second rings as shown in the first example if your modem is enabled and properly supporting caller ID.

If you were able to manually turn on and receive caller ID information, but Audio Caller ID does not work, then your modem is not being properly initialized by Windows.  You can fix this by either downloading an updated/fixed modem driver for your modem, or by manually adjusting the initialization command sent to your modem by Windows.  To do the latter, follow these steps:

  1. Add the caller ID command you determined up above to the extra initialization commands used by Windows.  Go to "Control Panel / Phone and Modem Options / Modems". Select your modem and choose the "Properties" button and go to the "Advanced" tab.  If the "Extra initialization commands" box is disabled, click "Change settings..." on the "General" tab first to enable making changes.  Enter the caller ID enable command (without the AT) into the "Extra initialization commands:" edit box.  For example, if you determined up above that AT#CID=1 was the correct command for your modem, you would enter just #CID=1 into this edit box.  Click OK
  2. Re-start your computer.
  3. Start Audio Caller ID and verify that it works correctly when you receive a call now.

If you were able to see caller ID information come through in Putty and you added the extra initialization commands as shown above, but Audio Caller ID still does not work, then we must look to the TAPI portion of your modem driver as the source of the problem.  This can be easily fixed by following these instructions. Home | Contact Us | Site Map | About Us | Privacy Policy