Jednotka 7 - 7D

Voicemail is a system that allows callers to leave recorded messages when the person they are trying to reach is unavailable to answer the phone. When a call is not answered, the voicemail system automatically picks up, and the caller can leave a message that can be listened to later. Voicemail systems are commonly used on mobile phones, landlines, and business lines. They allow the recipient to hear the message at their convenience, ensuring important information is not missed. Some voicemail systems also offer features like greetings, message storage, and the ability to send or receive voicemail notifications.

A payphone is a public telephone that requires the user to pay in order to make a call. Typically, users insert coins, tokens, or a prepaid card into the machine to cover the cost of the call. Payphones were commonly found in public spaces such as streets, airports, bus stations, and shopping centers, providing an option for communication when people were away from their personal phones. While their use has declined with the widespread availability of mobile phones, payphones are still available in some places, especially in emergencies or locations with limited mobile coverage.

A smartphone is a portable electronic device that combines the features of a cell phone with advanced computing capabilities. It allows users to make calls, send messages, browse the Internet, use apps, take photos and videos, and access various digital services. Smartphones typically include touchscreens, cameras, GPS, and wireless connectivity options like Wi-Fi and Bluetooth. They are powered by operating systems that support a wide range of applications, making them versatile tools for communication, entertainment, and productivity.