How can call blocking be effectively implemented in a 3CX setup?

Implementing call blocking effectively in a 3CX setup can be accomplished through outbound rules that restrict certain numbers. This method allows for flexible control over which numbers can be dialed out from the system. By defining specific criteria within these outbound rules, administrators can prevent users from reaching undesired numbers, either by defining entire ranges or individual numbers. This approach is particularly useful for managing costs, adhering to compliance, or enforcing company policies regarding communication.

The strength of using outbound rules lies in its centralized management, ensuring that all users are subject to the same dialing restrictions without the need for custom configurations on each individual extension. This not only enhances security but also simplifies the administrative oversight of call permissions across the organization.