There you have it! With an inexpensive Raspberry Pi, a little coding knowledge and effort, Twilio’s excellent APIs, documentation and Quickstart code, you can make your own voicemail server. For that matter, you can do a number of other things related to voice or message communications as well!
Using your cell phone to record a voicemail message isn't always easy. Between remembering what to say and getting the right timing, it's tricky. But your phone does have a playback option, and it's easy to listen to and review your message. For some people, though, cutting off the end of a message is a funny way to trick people and catch them off guard. In most situations, callers won't know it's intentional and will think you're far less than tech savvy. Definitely not an impression I'd want to make.

4. How to Send Your Recorded Phone Message to Your List: Once your list and recording are in hand, you are ready to send your call blast. The process for that is highly variable.
The answering machine was one of such great inventions that provided the public with the capability to record messages without answering them for decades before the invention of smartphones. The design of the answering machine was a team effort of various researchers that changed the telecom industry.