Your company's VoIP system experiences occasional quality issues during peak hours, which is most likely caused by network congestion. As the network administrator, you have been tasked with improving the quality of VoIP traffic across the network. Which method is BEST suited for prioritizing VoIP traffic to mitigate the observed issues?
Implement stronger encryption protocols for data transmission
Increase the overall bandwidth of the internet connection
Apply traffic shaping to limit unnecessary data flows during peak hours
Implement Quality of Service (QoS) policies to prioritize VoIP traffic