If you are experiencing issues with incoming call routing, what is one of the initial steps to troubleshoot?

When troubleshooting issues with incoming call routing in a 3CX environment, one of the initial steps to take is to restart all 3CX services. This action helps refresh the system's operational status and can resolve temporary glitches or service interruptions that might be affecting call routing. Restarting the services will reinitialize all relevant components, including call handling processes.

This step is particularly useful because it allows for clearing any transient faults that may have arisen due to updates, configuration changes, or network issues. By doing this, it ensures that the most recent configurations are applied and that any stale states are cleared, which is essential in maintaining optimal call routing performance.

While considering the other options, setting the system to basic logging is typically a later step used for detailed analysis if issues persist, and changing the voicemail PIN does not directly relate to call routing problems. Checking local firewall settings could also be crucial; however, that often requires further inspection beyond simply restarting services, as it may involve checking the configuration and rules that have been set within the firewall itself. Hence, restarting the services serves as a straightforward and immediate first action for addressing routing issues.