Can an extension be part of more than one group at a time in 3CX?

In 3CX, an extension can only belong to one group at a time. This design simplifies the management of call handling and distribution, ensuring that when a call is routed to a group, it reaches the appropriate set of extensions without overlap or confusion. Each group can have its own specific characteristics, such as call queues, ringing strategies, and voicemail settings, which are essential for effective organization and response to incoming calls. Allowing an extension to be part of multiple groups simultaneously could complicate the routing logic and create conflicts in how calls are handled, making it more difficult to manage effectively. Thus, the correct answer emphasizes the exclusive grouping capability assigned to each extension within the system.