Recording voicemail greetings for your business or personal life requires a separate list of priorities, because they are being used for two distinct purposes and will be heard by two very different types of callers. I have a friend with two cell phones - one for work, and one for personal calls - and if you call both lines, you would never know it's the same person. While the message on his personal line might not be ideal, he took the time to record a professional voicemail message for his business phone, which makes it stand out.
Change the alert for new voicemail: Go to Settings > Sounds & Haptics or Settings > Sounds. Yes No Character limit: 250 Please don’t include any personal information in your comment. Previous While on a call Next Select ringtones and vibrations Apple Footer  Apple Voicemail Greeting on iPhone: How to Record

Step 5: You will be prompted with Terms and Conditions message. Now, click the Confirm button on the screen. The call will now be recorded and saved in the phone’s built-in storage.
Step 2: If your phone is able to use Visual Voicemail, you will see a Set Up Now button. If you don’t see this pop-up or your phone starts to call the voicemail, your phone will not be able to use Visual Voicemail at the moment. You can call your providers and see if you can get it if you want.