This is the first time I am working on a Legend, so I have been using only what I was able to find on-line for manuals, etc. I need to change the main greeting to say a different company name. I can get into administration but when I dial "7" for greetings, it only gives me two options: 1 for voicemail and 3 for auto attendant. I've listened to all of these and they are just the default. How do I get to the main greeting?