UK, US and European ring tones, plus a basic test.

This circuit will ring a telephone in the UK, US or European style and also perform a basic check on the speech circuit. Of course, some people will wish to construct it for only one of these purposes.

One application would be to ring a phone for a stage production. The effect would be convincing to the audience (not usually the case when a person offstage using a bell push, battery and buzzer tries to imitate the UK style ring!).