Here we can hear an old dial telephone while calling and hanging up. This sound is now obsolete because the technology of these telephones doesn't work nowadays.
Recording provided by Ed Visoso.
This is part of the Obsolete Sounds project, the world’s biggest collection of disappearing sounds and sounds that have become extinct – remixed and reimagined to create a brand new form of listening. Explore the whole project at https://citiesandmemory.com/obsolete-sounds
