2.) Le hemos transferido al buzón de voz del señor John Doe. Por favor, deje un mensaje para que él mismo pueda devolverle la llamada lo antes posible. Muchas gracias por su llamada.
In Australian English it’s pronounced with the vowel /a:/ like in ‘part’. Problems arise when people use the /ʌ/ vowel (like in ‘up’) instead of /æ/ or /a:/. If you do this is will sound like the worst swear word in English. Many non-native speakers often pronounce the vowel /æ/ more like /ʌ/ because they don’t have a vowel like /æ/ in their first language. Many speakers of European languages will do this (Spanish speakers and Italian speakers) and also speakers of Japanese and Korean. This problem with /æ/ also means that if you say the word ‘back’ in your voicemail greeting sample, you are likely to pronounce it more like ‘buck’. remember to pronounce word endings in English. Check you aren’t dropping any endings off or mispronouncing them.

15. "This is Bond. James Bond. Okay, it's really [your last name]. [Your first name] [your last name]. I'll get back to you as soon as I'm done helping M16 save the world — which will probably be tomorrow at the latest. Have a good day."
Another great information you can put in your voicemail messages is to inform your prospects when you can reach out to them say the next morning or mid-afternoon and more so that they can be aware of when they can expect a call from you.