Your voicemail message should ideally answer all of the following requirements: Brief -- nothing bores callers as much (or makes them hang up as often) as long voicemail messages; Informative -- if it's your professional voicemail, say your name, …
Company-level calls are usually directed to your general business number. There are occasions when everyone in the office is tied up and unable to pick up calls. It’s important to gather information about the reason for the call so that the right person or team can call them back. These greetings ensure that customers do not feel neglected while also providing assurance that their call will be attended to as soon as possible.

Common business practice is within 24 business hours. Any extra messages or information you’d like clients to know. For example, if you are no longer accepting a particular insurance plan, the end of your voicemail greeting is a great place to convey that information.
One major pain point for any business is when customers aren’t going into a phone call or meeting prepared. If, for example, you’re a lawyer, you need your clients to come prepared with their documents ready. You also know that there are a ton of papers that need to be organized and filed — often with tight deadlines as well — and it’s imperative for the client to have it all readily accessible.