A voice call is a communication method that allows two or more people to talk to each other in real-time using telecommunication technology. This can be done through traditional landline phones or mobile devices, such as smartphones. Voice calls transmit sound over a network, enabling participants to hear each other clearly. During a voice call, the speakers' voices are converted into electrical signals, which are then sent through wires or wireless networks. This technology relies on various protocols and systems, including VoIP (Voice over Internet Protocol) for internet-based calls. Voice calls are commonly used for personal conversations, business meetings, and customer service interactions.