I am sure you have experienced choppy or dropped audio. The are many reasons for this but most are related to Bit Errors. Having fast internet is not enough, your audio travels along with all the other data on your home network. When you loose packets you hear it, not like on your TV where if you loose a few blocks of video. Below are a few recommendations from nextiva.com which can help eliminate that choppy audio.

Enable Quality of Service (QoS) on your router so VoIP traffic gets priority. This prevents VoIP packets from being delayed and helps calls sound smoother. Most modern routers, modems, and switches allow administrators to implement Quality of Service protocols that prioritize voice traffic.

nextiva.com

Use a wired ethernet connection rather than WiFi whenever possible. Wireless is more prone to interference, which introduces latency and jitter. Wired connections are more reliable for crystal-clear calls.

nextiva.com

Disable unused network hardware like VPNs, guest networks, and high-capacity applications like YouTube, Netflix, and other streaming services, or double NAT configurations that could be impacting call quality over the network. Reduce internal network congestion from making calls within your office space.

nextivia.com