This problem occurs when the modem is attempting to dial the configured number. Verify the string that was sent to the modem. It appears in the Test Telephone Number window under the Test Status in the line "Attempting to dial telephone number:". The string should start with ATDT or ATDP depending on whether or not the telephone line has tone or pulse dialing. Then, any configured dial prefix should appear, followed by the telephone number.
An example of the dial string being sent to the modem is, ATDT91,518-320-1005.
Common problems include:
This is a number or set of numbers that are particular to the customer's telephone system and gives access to an outside line. Updates to the dial prefix can be made using the Customize Modem Settings window by clicking Modem Configuration... from the Customize Outbound Connectivity window.
If the number selected is local to the area the area code should be removed from the number. The telephone number can be updated by clicking Edit... from the Customize Outbound Connectivity window.
If the number you are testing is long distance and your telephone company requires a "1" prior to the area code, update the number by adding a "1" to the dial prefix. Updates to the dial prefix can be made using the Customize Modem Settings window, by clicking Modem Configuration... from the Customize Outbound Connectivity window.
Make necessary changes and repeat the test. If the failure continues to occur, contact your next level of support for problem resolution and have them collect the /var/log/messages and the iqyylog.log files.