Your main greeting is the first thing callers will hear when they dial your number. You should use it to greet each caller and provide them with a list of their options. For example, your main greeting might say "Thank you for calling ABC Company. For sales press 1, for support press 2, press 8 for our dial by name directory."
To setup your main greeting click the "Settings" icon on the left of your screen. "Greetings" will be the first section in the settings menu.
This is where you will find your main greeting. There will already be a default greeting in the system.
Select the "Upload or Record" button to add a new greeting. The upload menu will appear allowing you to upload a prerecorded audio file or record one using your computer's built in microphone.
Your new recording will be added to the list. You can now choose to delete, use, or listen to the recording.
You will also see an options menu that allows you to choose what happens if a caller does not select an option from the main menu.