A professional voicemail greeting is a recording that informs clients and business partners you are not available to receive their call. It is an essential part of any effective business communication strategy, especially if you are in sales.
So far you probably had a generic voicemail greeting on your iPhone and want to change it to a personal voicemail greeting and with most carriers you don’t even need an additional voicemail recording app and can record a custom voicemail greeting directly on iPhone.

Your voicemail message let people know they've reached the right person and reminds them of leaving a message after the beep. So if you get a new iPhone, you have no voicemail message. Or maybe you just haven't updated your voicemail greeting. Let's look at how to change and record voicemail greetings on iPhone.
If you’ve already created a custom voicemail on your iPhone, you can tap Play to see how your voicemail sounds. If you’re interested in creating a new message, tap the Custom button. From here, you can start recording your message by tapping Record and tapping Stop whenever you’re finished. Once you’re finished recording, tap on Play to make sure the message comes across as you’d like and hit Save (in the upper right) to save it as your voicemail.