What is offline messaging?

With Offline Messaging, not only can you hear greetings from callers currently on the line, you can also hear greetings from callers who were recently on the line, and they can hear your greeting when you’re not on the line. You can also send messages to offline callers and receive messages from callers when you’re offline. Near misses are a thing of the past! You can also save messages you receive so you can listen to them again later on.