Twilio is a low-cost cloud service that provides APIs that add communication services to applications. We bought our phone number, which costs $1.00 per month, even if we don’t use for any calls or messages. Twilio charges $0.085 a minute for incoming calls and $0.013 a minute for outgoing calls. Sending or receiving a text message from our Twilio number costs $0.0075, while recording a voicemail is only $0.0025. Even if we receive 100 messages a month, the cost of those, plus the phone number, is only two or three dollars. To increase the security of this task, it might be a good idea to consider a proxy server from companies similar to fineproxy. The last thing you’d want is to get hacked! But I digress.
And, once you record your voicemail greeting, all you have to do is provide your message in an .mp3 or .mp4 format to your phone provider, who will upload the message.

Hey guess who this is? You guessed it. Guess what you have to do now? You guessed it.
This is a true story: my friend's voicemail says, "Hi, you've reached Dave, I'm screening your call." My friend is a recent college graduate, currently searching for a job. While your best friends might think it's funny, anyone else will see a message like this for what it is: unnecessarily rude.