The author, Phil Nash, was inspired to build a service that allows users to send Tweets like Larry King, who uses a voicemail system to dictate his tweets. The service uses Twilio's recording and transcribing facilities to record calls from a user's phone number, transcribe them into text, and then post them as Tweets on the user's Twitter account. To build this service, the author used Ruby 2.2.2, a free Twilio account, a Twitter application with read and write privileges, and the Twitter SMS application available from GitHub. The service includes endpoints for sending Tweets via phone calls, health checks, and monitoring services, as well as a Twitter streaming client that listens for notifications from Twitter and sends SMS messages to the user's phone number. Once set up, users can test the service by making phone calls, leaving messages, and checking the server log to see the transcription arrive. The author also provides suggestions for additional features that could be added to the service, such as transcribing voicemails and email, taking notes on the go, and getting contextual with hashtags.