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.
However, Hinze says that the way businesses use voicemail has changed radically. What once meant a constantly clogged answering machine is now a service that almost always involves the incorporation of more modern functions like automated message transcription. For customers picking up a phone after your normal hours of operation, rather than going to your website, voicemail greetings can keep them apprised of business hours, brief company news items and other critical information.

Hello, you have reached the law firm of X. At this moment, I’m busy attending the case of another client, but I will definitely get back to you the moment I am free. Please, leave your details, including your name, address, situation, and your contact number. For something absolutely urgent, call me on y number.
Now that you know which script to use, how do you record it? Depending on your budget and the resources available to you, you can record the script yourself, use a text-to-speech program, or hire a professional voice actor to record your greeting.