I am right now working on a new project. I turn an old mechanical dial phone into an accoustic guest book.
Users may lift the receiver, dial a number and thus trigger an anouncement. They are invited to leave a message after the tone.
The telephone is designed for autonomous operation. Connected to a computer, it can set to act as a USB drive. Messages aer recorded as OGG audio files to save storage space.
I built a first prototype inside a white model 1962 phone. The phone is already working with basic functionality. It contains a set of configurable functions. I will test, optimise and extend functionality during the next few weeks.
I will publish project details on a dedicated page in the near future.
For details see my Guest Book page.