Queues function as virtual waiting lines for incoming calls. They enable organizations to efficiently manage call flow by directing calls to a predefined group of extensions or agents. Callers are placed in a queue until an available extension or agent is ready to handle the call. Agents would need to log in the queue when they are available to take calls and log out when they are no longer available.
Call Groups are a feature that enables the efficient management of incoming calls within an organization. They allow users to group extensions together, directing calls to multiple extensions simultaneously or in a specific sequence/distribution.
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Pickup Groups provide a convenient way for users within an organization to answer calls that are ringing on another colleague's extension. By assigning extensions to the same pickup group, users can easily "pick up" calls from their own devices/applications.