Question

what all purposes can these telephones be used for?​

Answer 1

Explanation:

A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user.

Answer 2

A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly.

Phone calls create stronger relationships, foster clear communication, and allow you and your customers to save time by getting the answers you need in real time. Telephone calls are most effective in a few different types of conversations.

A telephone converts sound, typically and most efficienty the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user.

The telephone offers a more personal touch, allowing businesses the opportunity to integrate real-time two-way communication with customers. Technology has become such a vital part of our lives that we find it difficult to envisage life without our smartphones or having information at the touch of a button.

I hope this helps you.