1. "Hi, you've reached [your name] at [your company]. I'm unavailable right now — probably helping [type of company] get [X results, e.g. ‘double their leads in 60 days,' ‘hire the best and brightest engineers,' ‘convert 40% more customers.'] Leave your name and number, and we'll discuss how your company can see similar results."
3.) Leider ist Ihr zuständiger Ansprechpartner immer noch mit Kundenanliegen beschäftigt. Um Ihnen die Wartezeit abzunehmen, bitten wir Sie Ihr Anliegen, sowie Ihre Kontaktdaten zu hinterlassen. Wir werden uns umgehend während unserer Bürozeiten mit Ihnen in Verbindung setzen. Vielen Dank!

Users often don’t invest enough time into their messages, resulting in incomplete, unprofessional, or otherwise under-whelming greetings. Sure, crafting a greeting doesn’t sound all that complicated; however, there are a number of pitfalls users can fall into—i.e. informality, terseness, sincerity, lack of direction, and more. While none of these sound too catastrophic, they are often interrelated. As such, they tend to worsen any problem. For example, humor can cause informality, worsen ambiguity, and weaken sincerity. That being said, users should strive to avoid ALL these pitfalls.
"These sound great. Thanks for the excellent service. We'll be using you again in the near future. Many thanks."