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.
If someone takes the time to call and leave you a voice message, they usually have a reason that they are calling. It does convey a certain level of interest when someone is willing to hop on the phone with you. If they were less interested, they would probably send you an email or fill out a form on your website.

Having a dedicated emergency contact will help make sure anything important that comes up is taken care of. Another option is directing callers to a separate answering service.
On the Greeting page there are two options. The standard option is to use the default iPhone voicemail message, but you can also record a custom message. If you already have a custom iPhone voicemail message recorded, tap Play to listen to it now. Otherwise tap Custom.