1.) Le hemos transferido al buzón de voz de John Doe. Actualmente, el señor Doe no puede atenderle. Si lo desea, puede llamar de nuevo más tarde o dejar un mensaje con su nombre y número de teléfono para que él mismo pueda devolverle la llamada lo antes posible.
When you create a professional voicemail greeting, it can be a good idea to think about what your callers might want to know. After doing so, you can make a list of points to cover in your voice message; it might also be a good idea to write out the entire greeting on a piece of paper. The ideal message should be somewhere between 10 and 20 seconds, so you may want to time yourself repeating your message before you record it. After composing your telephone message, it can be a good idea to get a second opinion of this greeting so you can make sure it sounds professional. Writing down a voicemail greeting helps prevent mistakes when recording it.

Of course, yours may need more details. But, even if you’re changing your outgoing message every day, it should only be a slight variation from a standard greeting.
Apart from gaining a good impression of you, a clear and professional voicemail greeting is essential for negating any possible concerns the caller may have that you are the correct person to speak to, and will give them the information they need to leave you an effective message in return.