'telephone-based' originates from 'telephone,' which comes from Greek, specifically the words 'tēle' meaning 'far' and 'phōnē' meaning 'voice or sound.'

'telephone' changed from the Greek word 'tēlephōnos' and eventually became the modern English word 'telephone.'

Initially, it meant 'far sound,' but over time it evolved into its current meaning of 'a device for transmitting sound over distances.'