To accommodate a tidy office environment with new multi-functional phones, which configuration should a network administrator implement?

In the context of accommodating a tidy office environment with new multi-functional phones, the implementation of Quality of Service (QoS) to reserve bandwidth is essential. QoS is a network feature that helps manage network traffic efficiently, prioritizing certain types of data to ensure that critical applications perform optimally.

In a scenario where multi-functional phones are integrated into the network, these devices often handle voice over IP (VoIP) communications, which are sensitive to latency and require uninterrupted service. By setting up QoS, a network administrator can allocate a specific amount of bandwidth to VoIP traffic, ensuring that voice calls maintain high quality even during peak network usage when other applications may consume significant bandwidth.

This approach helps in delivering consistent call quality, reduces jitter and packet loss, and ensures that users experience seamless communication, which is vital in a professional setting. The other options, such as setting up fiber connections or VPNs, are relevant in their contexts but do not directly address the specific needs related to voice quality in a multi-functional phone setup. Power over Ethernet (PoE) may also be a consideration for powering the phones, but it does not directly pertain to managing network performance and call clarity, which is the primary concern when accommodating those multi-functional devices.