This is a great collection of synthesized phone sounds perfectly crafted as busy tone sounds! They are loud and alarming sound items usable with smartphones / telephones in movies or other projects - when trying to reach someone and there is no connection made. Try these "failed connection" sounds also in your reviews, tech projects, cartoons, animations, explainers, presentations, mobile phone commercials and you tube videos and you will be more than satisfied with the results! Have fun with this one!

4 versions are available in the main archive.
Good luck with your special projects!