A virtual business phone system like Grasshopper can help you create a professional, reliable voicemail greeting. It includes instant response and custom greetings, as well as access to the Grasshopper Voice Studio and professional voice talent for a one-time fee of $75.
Snap Recordings has over 100 professional, industry-leading voice talents available. Pick a language, select a voice-over artist and click the play buttons to hear samples of their professional phone greetings, voice prompts and messages on hold.

Informal voicemail greetings are those that don’t adhere to the rules of professional and business voicemail greetings. Here, you are free to just leave a simple greeting, or use it to show your more witty side. This style of greetings can be used for both home and business if you like, depending on the type of caller you expect. For instance, a novelty shop could probably create a rather informal message, using sound effects that represent the type of items they sell.
General voicemail greeting: used as the default voicemail greeting if no other greeting type is set. Internal voicemail greeting: used to greet people who call your department from within your own company (i.e. from another extension).Generally, this is only applicable to very large companies. External voicemail greeting: played for people who call from outside your company.