4. "Hello, you've reached [your name and title]. I'm currently out on parental leave until [date]. In the meantime, please direct all phone calls to [alternate contact name] at [phone number] and emails to [email address]. Thanks, and I'll see you in [month you'll be back in the office]."
As a bonus, here is an example of our own holiday voicemail greeting here at OpenPhone:

In order to proceed, simply complete our simple billing form by clicking here and place your contact phone number in the “Voicemail Office Number” box and your script and name of talent in the comments box, so that we can setup an account to be billed for the professional recording(s). You will then receive a price, if over the 100 words, or be billed the one-time $49 (or $99 for on-hold announcements), and your voiceover files will be sent by email once completed.
3.) Bienvenue chez John Doe. Actuellement, nous ne pouvons pas répondre à votre appel ou vous nous appelez en dehors des heures de bureau. Laissez-nous un message avec votre nom et numéro de téléphone – nous vous appellerons aussi vite que possible. Merci et au revoir.