Definition: Diallers are a type of communication device that allows multiple users to communicate over a single line. They typically consist of two or more devices connected together, such as phones, laptops, and other digital devices. When one user presses a button on their phone, it triggers the next user's connection, allowing them to communicate with others in real time. Diallers are commonly used in call centers, emergency services, and other situations where multiple people need to communicate simultaneously.
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