All terms in this list:

audition: A performance, by a performer, to demonstrate suitability or talent, for a role or job.

telecommunications: Communication over distance by cable.

inaudible: Unable to be heard.

vista: A pleasing view through a narrow space (usually).

telemarketing: Advertising by phone.

homophone: A word pronounced the same as another but have different meanings. Can be spelled different.

periscope: Optical instrument for viewing objects above eyesight.

phonograph: Sound reproducing machine (any).