If you live in an apartment building that has a phone-access door buzzing system, you can configure ICM to "buzz" visitors up with the Open Door feature. When you receive an Incoming Call Pop-up notifying you of a phone call, Open Door appears as a subset of the Play Message button. You can configure this to set the correct tone to open your door.
To configure the Open Door feature:
Click the ICM Main Window's Setup button.
The Setup window opens.
Ensure that the correct menu is displayed by clicking the arrow beside the Custom Greetings menu item, then click on Open Door.
Click the box next to Click to enable Open Door button to enable the Open Door feature.
From the drop-down menu, select the button you press on your telephone dial pad to open the entry door of your building.
Click the OK button to accept the changes and dismiss the dialog.
Now when you have an incoming call, and you select Play Message, the drop down extended choice of options will have include Open Door.
The Cancel button lets you dismiss the dialog without accepting any changes you might have made.
For information on using the Open Door feature, refer to Using the Open Door Button.