To record a call using your voicemail follow these steps: Open your Phone app. Click "voicemail" in the lower right-hand corner. Click "call voicemail" (depending on your carrier, you may have a different but similar option). Enter your iPhone voicemail password. Press the number associated with sending yourself a message.
How do I change my voicemail greeting on Android? Open the Phone app . Press and hold “1” to call your voicemail. Enter your PIN and press “#”. Press “*” for the menu. Press “4” to change settings. Press “1” to change your greeting. Follow the recorded instructions. Access your main voicemail menu. Listen for instructions to enter your password. From the main menu press 3 for Personal Options. Press 2 for Greetings. Press 1 to Change Greeting. Press 1 to Record personal greeting or press 2 to select the standard greeting. Tap on Call settings and select Voicemail. Tap on Voicemail service and select My carrier or My operator. Tap on Setup, select Voicemail number and type in your voicemail number. Tap on OK in the Voicemail number changed popup.

Standard greeting with phone number: "At the tone, please record your message to [phone number]."
Weren’t these messages funny and wacky for your machine. Of course, you have to be a bit careful as to what you say and record on your machine. You don’t want to offend anyone or say something that might upset your listeners. So be absolutely sure. And, if you have any more voicemail ideas, do let us know by leaving a comment below. Till then, I’d like to… beep.