Still within Queue Settings, click Timeout Destination, then select Voice Mailboxes and New Voice Mailbox. If you have an existing mailbox you wish to use as the voicemail for the queue, please select that here and skip the next step.
Greetings can be changed using any telephone, or from the Personal Communications Assistant using a desktop computer; However, departmental mailboxes and those assigned to labs and general spaces must be updated using a telephone.

Your greeting is very important as it can be the first contact people have with you or your company. Voice mail is only impersonal if you make it that way. One way to help increase the effectiveness of voice mail is to change your greeting at least weekly if not daily.
A good voicemail greeting is short and professional, lets people know that you’ll get back to them, and invites callers to continue engaging with a call-to-action. You should also show your personality if you’re in an industry or role that allows that. If your industry is more conservative, however, you’ll want to keep humor and personal touches to a minimum. A greeting Your name Your company A simple explanation for missing the call (e.g. you’re away from the phone or are on holiday) A rough estimate of when you’ll get back to the person An alternative person to reach out to (if you’re out of office) An alternative mode of communication (if you prefer email or text) A call-to-action such as “Leave a message” or “Send me an email at [email protected]”