To close the Phone app, begin by double-pressing the Home button. This will open the App Switcher, which will display all the apps you currently have open on your iPhone. Use your finger to swipe up on the Phone app. You’ll know the Phone app is closed when it no longer appears in the App Switcher.
Set up Visual Voicemail on your iPhone. Looks like no one’s replied in a while. Go to Settings>Phone>Change Voicemail Password. Enter a voicemail password then click done. Re-enter password then tap done again. Now go to your voicemail greeting and you will be able to edit your greeting. More Less.

In Microsoft 365, you can record a greeting, edit call answering rules, set up Outlook Voice Access, edit text message and email notification settings, and turn on voice mail preview using Outlook on the web.
Creating a professional voicemail greeting isn’t complicated, but you need to keep a few things in mind to ensure success. The following tips will help: Be friendly and welcoming - let your company's personality shine!; Have a clear voice, speak at a slow to moderate pace, minimize background noise; Ensure the greeting is human and approachable; Keep the greeting short and informative; Ensure the greeting doesn’t sound robotic or unnatural; Show your gratitude for the call by saying thank you; Manage expectations by clearly stating when the client can expect a callback.