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How to improve call quality?

Support Home page > Technical Recommendations > How to improve call quality?
At Ringover, we make every effort to ensure optimal call quality.✅ We use the latest technology, and our infrastructure is regularly updated. Our telecom solution is based on WebRTC technology (new VoIP solution) and uses the OPUS codec.

Step 1: Recognise the elements impacting call quality

Step 2: Optimise call quality

Step 1: Recognise the elements impacting call quality

Your network infrastructure 📶, your internet connection, your routers and your wifi terminals all contribute to the quality of your calls. It's therefore essential to use the best possible network equipment 🌐 in order to ensure that the 3 most influential factors are optimised and that you can make HD WebRTC calls:

  • Latency: this is the time that a “packet” takes to reach its destination. It is measured in milliseconds (ms). Over 150ms can result in conversation delays.

  • Jitter: this is the variation in latency, which allows measurement of the variation in packet transmission delay. If packets are sent at irregular intervals, audio flow will not be correctly transmitted (for example, during a conversation you’ll occasionally hear your correspondent’s voice speed up). The acceptable limit is approximately 20ms.

  • Packet loss: this happens when the network is unstable or overloaded. In this case the conversation will be choppy with phrases cut off.

Otherwise, there is a much greater chance that you'll encounter problems with these 3 factors if you're connected to wifi📡 especially if your terminal is not optimised. There are several possible reasons:

  • 1. Because wifi is sensitive to interference (smartphones, microwaves, etc.), characterised during calls by crackling, choppiness, etc.

  • 2. There may be multiple devices connected to your wifi network that use up bandwidth.

  • 3. Your wifi is not adapted to real-time applications.

We therefore recommend a connection via network cable (Ethernet) 🔌. You’ll see the difference! 😉

💡 Here’s a tool for measuring the quality of your internet connection (these tests only take a few short minutes): 👉 https://speedtest.ringover.com.

Step 2: Optimise call quality

The best way to optimise is to ask your company’s network manager 👨‍💻 to put QoS (flow prioritisation) in place. This informs your router that flows to/from Ringover servers take priority over other internet traffic.

To see our IP addresses, consult this article 👉 Flow prioritisation.

See our article 📰 5 Simple Steps for Optimizing the Quality of Your VoIP Calls
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