Yes. There are two ways to add a message your participants will hear when they call in. Begin in your Calendar tab. The first option is choosing a single message to play everyday that you are open. In the space given at Today's Message, fill in your message. It must be 60 characters or less. Click Save. This message will now play everyday until erased or changed.
The second option is to have a single message on a specific day. In your Calendar tab, go to the day you would like a messaged played. On the top left corned of that day, you will see a quote bubble. Click on this quote bubble.
You will now see a pop up screen with a space to enter your message. Again, this message must be 60 characters or less. Click Save. This message will now play on this specific day. It can be erased or changed at any time.