Definition of telegraphophone in US English:

telegraphophone

noun

rare, historical
  • A device which records sounds received by telephone, so that they may be subsequently replayed or reproduced; specifically one which records the sounds on to a cylinder.

Origin

Late 19th century; earliest use found in U.S. Patents. From tele- + graphophone, after telephone.

Pronunciation

telegraphophone

/ˌtɛlɪˈɡrafəfəʊn/