🎧 Troubleshooting Audio Quality Issues

Created by the UsVox Support Team

If you’re experiencing poor audio quality — such as echo, robotic voice, jitter, delay, or “tunnel” effects — it is usually related to internet connection quality or local network setup.

Here are the most common causes and how to troubleshoot them:

1. 🌐 Internet Traffic on the Network

Heavy internet usage on your local network can affect VoIP call quality.

❗ Common issues:

• Streaming video or music during business hours
• Large file uploads or downloads
• Cloud-based backups or syncing

✅ What you can do:

• Limit high-bandwidth activities during business hours
• Use Quality of Service (QoS) settings on your router to prioritize voice traffic
• Monitor real-time internet health

🛠️ Tool: Internet Health Report

2. 🕒 Latency, Jitter, and Packet Loss

Poor transmission between your ISP and VoIP devices can result in:

• Audio delays
• Missing audio segments
• Poor synchronization

✅ What you can do:

• Test your connection using Ping or Speed Test tools
• Use Traceroute to identify where latency occurs
• Contact your ISP if you detect packet loss or excessive delay

🛠️ Tools:

• Speedtest by Ookla
• Telinta Network Tool

3. 🔌 Network Cabling Issues

Faulty or poorly installed network cables can cause intermittent or degraded voice quality.

⚠️ Check for:

• Cables running near electrical conduits, neon lights, or large appliances
• Cuts, dents, or kinks in the cables
• Improperly crimped connectors or loose jacks

💡 Tip: Invest in shielded cables and follow proper cabling practices.

📘 Bonus: Search “Top 20 Practical Cabling Tips for Network Engineers” for deeper insight.

4. 🖧 Network Equipment Configuration

Your hardware setup plays a key role in voice performance.

🔍 What to check:

• Enable QoS (Quality of Service) to prioritize SIP traffic
• Avoid daisy-chaining multiple unmanaged switches across the office
• Make sure all SIP devices are on the same subnet as your router
• Use surge protection or a UPS (Uninterruptible Power Supply) to avoid power disruptions
• Update your router and switch firmware

📌 Damaged or cheap equipment — especially under desks or pinched behind furniture — is often the source of dropped calls or jitter.

🛠️ Still Need Help?

If you’ve reviewed all of the above and are still having issues, contact UsVox Support. We can assist with:

• Network testing
• SIP trace reviews
• Audio path troubleshooting

📞 1.855.MyUsVox (698-7869)

📱 Call Support at 1786-275-5888

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