By default beginning April 2017, voicemail transcription is available for all Phone System in Microsoft 365 users. When you receive a voicemail, the message will be transcribed in the body of the voicemail email you receive in your mailbox. If you do not want to have transcription for your messages, ask your admin to disable it for you.
After setting the number on your voicemail, you must also record a personal voicemail greeting. Follow the steps below. Start the Phone app. if you don’t see the numeric keypad, tap “Keypad” at the bottom of the screen. Tap and hold the “1” for about two seconds until the phone automatically calls voicemail. Immediately tap “3” to access voicemail settings. Listen to the options. On most voicemail systems, tap “2” to start the process to record a new greeting. The current personal greeting will play; then tap “2” again to record a new greeting. Say the greeting you want, and tap “#” when you’re done. To save the greeting, tap “1.” The personal voicemail greeting has been set. Hangup the phone. How to setup voicemail using a Visual Voicemail Applications

Website: https://appgrooves.com/android/com.metropcs.service.vvm/visual-voicemail-by-metropcs/metro-by-t-mobile
14. "Hello, you've reached the Sales Department at [Company name]. All of our representatives are currently helping clients [insert goal such as, 'achieve 40% growth through streamlining HR operations'] and are unable to take your call. Please leave your name, company, and phone number and we'll give you a call back ASAP. Thank you!"