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6 Ways to Optimize the Quality of VoIP Calls

how to improve voip calls

Finally, the traditional landline phone service has been replaced by advanced VoIP phones. These modern phones use the Internet for transmitting signals in the form of data. Voices are converted into digital signals, compressed, and then regrouped into packets before submission. Once the packets are received, they are decompressed and converted into sound.

No matter how advanced the VoIP technology becomes, sometimes, the voice quality drops, impacting your experience as well as sales (if you’re using a VoIP service for business). What are these common voice flaws, you ask? These include lost communication, echoing voices, Charpy sound, and crackling. Before we look into the solutions, let’s identify the causes of poor quality.

Common Voice Quality Issues   

Echoes and Delays

Latency refers to the time elapsed between the packet’s transmission and the reception. It’s the gap between the moment you speak and the correspondent hears your voice. To some extent, latency is normal. But if the conversational delays and echoing are common, this means your network’s latency rate is higher.

Dropped Communication

When this happens, the problem is packet loss. If too many packets of data are missing, the voice becomes charpy. In some cases, the conversation is cut off altogether. This happens when the network reaches its maximum capacity. The buffer has to free up some of the bandwidth, which can result in packet loss.

Robotic Voice

This is a sign of jitter. In case you don’t know what jitter means, it’s statistical variance in transmission delay. It is the time variation between the moment when two packets from the same data should have arrived compared to the moment when they actually arrive. The higher the jitter, the more robotic voice you will experience.

Tips to Improve the Voice Calls

Now let’s see how to overcome these problems. In other words, these are some tips to improve the quality of your VoIP calls:

1: Make Sure Your Internet Is Stable

First things first, check the stability of your Internet. A poor network could result in all of the above problems starting from jitter, packet loss, to latency. To check the status of your network, before calling the customer support of your ISP, ideally, perform a speed test.

Use the download and upload speed measures to gauge the speed. Both speeds must be above 50 Mbps. If the speed is below 50, it’s time to call your ISP and inquire about the issue. Sometimes, your current Internet package is not enough to meet the needs of sustaining a quality VoIP call experience. Check that as well

2: Gauge the Performance of Your Device

At times, robotic or Charpy voices can be caused by slow devices as well. Each VoIP app requires certain RAM specifications to function properly. You can always optimize the speed of your device by increasing the RAM. The minimum power required by a PC is usually 6GB.  

3: Invest in a Good Pair of Headsets

If your correspondents often complain about hearing noises around you or that your voice seems distant, chances are your headsets need an upgrade. A noisy environment surely undermines communication. The sound might seem far away if one of the parties is using a jack cable.

The most recommended headset, especially if you are looking forward to investing in noise-canceling ones, is the USB headsets. They ensure the call quality remains intact. This investment will make your life easy and your clients will always be able to hear you without the background noise.

4: Don’t Forget about the Correspondent’s Internet

Always ask the correspondent to check their connection as well. If you can’t hear them, this is a sign there’s a network problem at their end. Even though helping the correspondent in checking their network’s health is not your responsibility, there’s no harm in going the extra mile to help them troubleshoot.

5: Reduce Your Bandwidth

When too many devices are connected to a single router at the same time, bandwidth condensation sets in, and ultimately, the voice quality suffers. Obviously, in a WFH environment, when are taking calls and you’re little brother is playing an HD online game, then they are taking a significant portion of the bandwidth.

The easiest fix is to stop all unnecessary Internet activities and have all the bandwidth to yourself to take the VoIP calls.

6: Verify the Codec of Your VoIP App

The sound quality of a VoIP service also depends on the codec. Generally, VoIP operates use G711 and G729 codecs. These are sensitive to the variation in Internet speed. This would lead to crackling and call interruptions. These old codecs also consume significant bandwidth and prolong the response time.

The latest codec for the VoIP phone system is Opus. It was introduced in 2013 and it’s used ever since. It has increased the quality of voice as well as video calls significantly.

Final Words

Optimizing the quality of your VoIP calls is not always about poor Internet connection, on rare occasions, it could be the work environment that needs adjustment. So take the right action and improve the experience.

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