If you persistently can’t save your greeting, you may need to reset your phone’s network settings. The iPhone needs to access your network’s data connection to save changes to your voice mail configuration, and if it can’t connect to 3G or 4G, it won’t save the changes. Start the Google Voice app. Tap the three horizontal lines at the top left of the screen (sometimes called a hamburger menu), and then tap “Settings.” In the Voicemail section, tap “Voicemail greeting.” Tap “Record a greeting.” How do I access my voicemail? To call your voicemail on an Android phone, simply open your phone’s dial pad and hold your finger down on the “1” key. You can also call your voicemail from a different phone by calling your own number and tapping the pound key. How do you check your voicemail?
While missed calls aren’t ideal, you can let your caller know you’re still there for them by having a great voicemail greeting. The best business voicemail greetings let your customers (and potential customers) know why you’re not available and how they can best get in contact with your business. They are also short and to the point. You usually want to keep your greeting between 6 and 24 seconds long so callers don’t hang up halfway through.

Customers expect professional treatment from your business at all times, even from a prerecorded business voicemail greeting. Provide a good impression of your business and yourself through the simple act of recording a professional voicemail message. It only takes a few minutes of your time and can impact your business for the better.
The alternative is simple: Provide in your voice message a phone number and refer the caller to an assistant, a colleague, a cell number—any way of expediting their quest. Help your caller to reach someone who can, in your absence, be helpful and succeed in keeping the business. And remember to update your voicemail message when appropriate.