Your call quality is essential for ensuring smooth and professional interactions with your clients. By optimizing your network infrastructure, you'll take full advantage of clear, uninterrupted communication thanks to our WebRTC HD technology and the OPUS codec. In this guide, you'll learn how to identify the key factors that impact audio quality and configure your network for optimal communication. 

1. Identify factors that impact audio quality

Your internet connection, routers, and network equipment directly impact your voice quality. Make sure to optimize the following three technical indicators to ensure smooth conversations: 

• Latency (Ping): This is the time required (in milliseconds) for a data packet to travel from your computer to our servers. If it exceeds 150 ms, you will experience a noticeable lag in your conversation.
• Jitter: This is the variation in latency over time. If audio packets arrive at irregular intervals, the stream becomes distorted and your caller's voice will sound sped up. It should remain below 20 ms. 
• Packet loss: This occurs when your network is unstable or congested, leading to lost audio data in transit. Your conversation will sound choppy and sentences will get cut off. 

2. Choose the right network connection method 

How you connect your computer to the internet has a major impact on the stability of your real-time communications: 

Wired connection (Ethernet)

This is Ringover's recommended solution for all your business calls. It eliminates the risk of interference and offers consistent speed. 

1. Plug an Ethernet cable between your computer and your router. 
2. Turn off Wi-Fi on your computer to force the use of the wired network.

Wireless connection (Wi-Fi)

This alternative should be avoided or used only if you have no other choice, as it poses high risk for disruptions:

• Physical interference: Wi-Fi signals are disrupted by walls, microwaves, or other smartphones, creating static or dropped calls.
• Bandwidth sharing: Multiple devices connected simultaneously quickly saturate your access point's Wi-Fi signal.

3. Configure QoS (Traffic Prioritization)

The most effective way to guarantee your call quality is to reserve priority bandwidth for your phone system on your corporate network:

1. Contact your IT manager or corporate network administrator.
2. Request the implementation of QoS (Quality of Service) on your routers.
3. Configure router rules to set inbound and outbound traffic from Ringover servers as priority over all other traffic (downloads, videos, etc.). 
4. Save our IP address ranges in your network configuration. 

Find all our server IP addresses in our guide on: How to configure my router ports and prioritize traffic

🎉 You now know how to identify network factors and optimize your connection to enjoy exceptional HD call quality with Ringover!