AT&T MERLIN LEGEND Release 3.1 System Manager's Manual page 330

QCC Console Not Ringing for Incoming Calls
Possible Cause 2: The Position Busy feature is turned on.
What to do: Check the green light next to the Position Busy button.
If the green light is on, then Position Busy is turned on. Press the button
to deactivate the feature and to turn the light off. Finally, check to see
whether incoming calls ring at the console. If they do, you have solved
the problem. If not, go to Possible Cause 3.
If the green light is off, then Position Busy is not turned on; go to Possible
Cause 3.
Possible Cause 3: The Calls-In-Queue Alert option is disabled (this is the
factory setting). The number of calls in the queue have exceeded the
programmed threshold, and calls are being directed to a backup.
What to do: Use system programming to check and see whether the QCC's
optional Calls-In-Queue Alert is disabled (see Chapter 3 in System
Programming ).
If the Calls-In-Queue Alert option is set to Disable, change it to Enable, if
appropriate. Finally, check to see whether incoming calls ring at the
console. If they do, you have solved the problem. If not, go to Possible
Cause 4.
If the Calls-In-Queue Alert option is set to Enable, go to Possible
Cause 4.
Possible Cause 4: Night Service may be on, and calls may be ringing at
extensions assigned to the Night Service group rather than at the QCC.
What to do: Check the green light next to the Night Service button. If there is
more than one QCC, all must have Night Service activated in order for calls to
ring at Night Service group extensions
If the green light is on at all QCCs in the system, then Night Service is
turned on. Press the button to deactivate the feature and to turn the light
off. Finally, check to see whether incoming calls ring at the console. If
they do, you have solved the problem. If not, go to Possible Cause 5.
If the green light is off, then Night Service is not turned on; go to Possible
Cause 5.
Possible Cause 5: The telephone may be defective.
What to do: Test the telephone by replacing it with another MLX-20L telephone
that you know is working properly.
Troubleshooting the System
8–11