Ringbacks

And again the Telecom-industry develops a micro service: Ringbacks. These are:

This service replaces that traditional ringing or beeping sound a caller hears before the phone user answers with a 30-second clip of music or sound effects.

. It sounds a little bit like a very simple answering service, i.e. without the recording.

The voice service gets slowly more intelligent. You can already imagine various improvements on this service. Change the ringback based on CLI. Commercial ringbacks? An advertising ringback network?

[inspiration: MocoNews]