Technically, hasn't "voice communications via acoustic means" been around a lot ... | Hacker News

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notmyname on June 5, 2009 | parent | context | favorite | on: Communication with submarines

Technically, hasn't "voice communications via acoustic means" been around a lot longer than that?

rbc on June 5, 2009 [–]

Well, I meant in the context of communicating with submarines, the subject of the Wikipedia article.

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