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.
The way all your words and sentences come together gives your script a distinct written tone. Combine that with a specific speaking tone to create an on-hold message that reinforces your brand and product set. Selecting the correct tones will ensure your intended message is communicated effectively. If your target market is the younger generation, then a tone which embodies fun and excitement would be most suitable.

Translation: If you sound unsure, then your current clients, prospects, and partners won’t be so sure about you either.
“Hi, you’ve reached three-time fantasy football champion (insert your name) at (insert your company name). Please leave your name, number, and a fun fact about yourself, and I’ll return your call as soon as possible.”