You might also consider giving them the option to skip your voicemail message completely by pressing another key (again, check with IT). You also want to make callers aware what you will return their call, instead of telling them that you will try to return their call--and let them know when you are likely to do it, if possible. If necessary, provide additional or emergency information in your voicemail greetings. My dentist, for example, lists his cell phone number for emergencies.
7.) Welcome to John Doe DE, your specialist for sample products. If you want to place an order then please use the ordering process in our online shop www.johndoe.de - We look forward to your order. For all other questions, please contact our service department via email at [email protected] - we will get back to you as soon as possible. Thank you for your call.

9.) Bienvenue chez John Doe. Malheureusement, il n'y a personne dans le bureau à l'heure actuelle. Laissez votre nom et numéro de téléphone après la tonalité. Nous vous rappellerons dès que possible.
Say that your prospects want to speak to the sales department and so when they realize that they have reached the right department and hear the voicemail messages, they will be compelled to leave their contact details so that the sales team can reach out to them later. They will be relieved.