Check with your carrier on specifics, but an option to "send a message" may be in the voicemail menu. This will allow you to send a voice message from your voicemail to another person's inbox without having to make a phone call first.
9.) Benvenuti alla John Doe. Siamo spiacenti, ma nessuno è in ufficio al momento. Si prega di lasciare il vostro nome e numero di telefono dopo il segnale. Vi richiameremo al più presto possibile.

Some people are more interested in recording an answering machine greeting that gives just the bare minimum of information. Such a greeting might be: “You’ve reached 555-5555. Please leave a message and we’ll get back to you soon.” What this salutation may lack in imagination, it may make up for in personal security, especially if you’re getting calls from telemarketers. Note that you don’t give your name, don’t reveal who lives in your home, and don’t say that you’re not at home. Occasionally thieves do call a home to verify the person’s presence at home or lack thereof. You’re essentially not committing to anything but your phone number in this kind of message, and the short message is likely to please cellphone callers. An answering machine greeting for a home business could be used to promote products, such as makeup.
As the odds of receiving a call back from your voicemail message are already low, you need to be very specific about what you say in your voicemail to give you the greatest chance of getting a call back. What you absolutely do NOT want to do is make yourself sound like a salesperson making a cold call. Instead, you want to sound like a very confident business colleague who deserves the respect of getting a call back.