These voicemail ideas may not come so easily for some of you. And who says that finding inspiration is a bad thing. It’s natural; not everyone has a funny bone inside them. But that doesn’t mean you get stuck with a boring, cliché greeting. It has to be different and contain some kind of style. And to that, I would like to give you a list of messages. They are perfect alternatives when you want to add some uniqueness to your voicemail. These cool voicemail ideas given below will take the mundane effects off and leave you with fresh sounding voicemail messages. So take a look at some funny greetings that you can use as your funny cell phone voicemail ideas (or home phone).
Unfortunately, there’s no built-in button in your iPhone’s phone app for recording calls. Instead, you’ll have to use a third-party app or service or use a clever workaround.

This data usage will be taken from your data allowance when the message is received. Once the message is received, it can be listened to without any further data connection & without incurring further cost.
On the iPhone, go into voicemail and tap "Greeting". Record a few seconds of something and tap stop. Before you tap save, use iFuntastic or SFTP to navigate to /var/root/Library/Voicemail on your iPhone. You'll see a file called "Greeting. amr". This is the audio you just recorded. Delete that file and replace it with your custom message which should then be renamed to "Greeting.amr". Tap "Play" on the iPhone to verify your message works. If it plays, tap "Save" and your custom message will be uploaded to AT&T's servers.