VoIP service providers usually aim to offer full support to clients and ensure the highest voice quality in VoIP systems through guidance, proper installation, regular product updates, necessary configurations tailored to each client, and comprehensive after-sales services.
However, one of the most common issues faced by VoIP providers is problems related to voice quality in VoIP systems.
In this article, we highlight some simple methods that can significantly improve sound quality.


Simple Ways to Fix Voice Quality Issues in Your VoIP or Internet-Based Communication Systems
1. Check Security Software:
To achieve the best sound quality in VoIP systems, ensure that your security software or firewall does not block the ports used for voice transmission on your internal network. Ensure these ports are open and functioning properly. Also, verify that these ports are not subjected to inspection or filtration.
2. Verify Firewall Settings:
To achieve the best sound quality in VoIP systems, ensure that your firewall does not block the ports used for voice transmission over your internal network. Make sure these ports are open and working properly. Also, verify that these ports are not subjected to inspection or filtration.
3. Review Codec Settings:
The term Codec is a combination of the words “Compressor-Decompressor” or “Coder-Decoder.” A codec is an algorithm that converts audio from one format to another for several reasons, the most important being to make files smaller so they can be easily distributed over the Internet or internal communication networks while enjoying the best voice quality in VoIP systems. You should always ensure you’re using the appropriate codec. Most VoIP service providers prefer using the G.711 codec.
Using the wrong codec can cause slowdowns or poor audio transmission quality.
When selecting a new codec, ensure that all devices in your network support it.
If some devices do not support it, voice transmission will not work.
4. Check Internal Network Quality:
Any internal network issues, such as data loss on the network or problems with internal network devices or cables, will certainly affect voice quality in VoIP systems.
5. Verify Internet Speed:
When transmitting voice or connecting your company’s branches over the Internet, you should choose a reliable Internet service provider with appropriate speed for voice transmission.
For example, the G.711 A-law codec uses 87.2 kbps (8.7 KBps).
You should also verify that Internet users or employees within the network are not using the Internet for personal purposes such as downloading music and movies, as this will certainly affect voice quality in VoIP systems.
You must also ensure that the Internet speed matches the number of users.
6. Test Internet Quality:
When using the Internet to connect different branches of your company, you should test packet loss rates and data transfer speed between branches.
Of course, the higher the packet loss rate between branches, the worse the call quality will be.
7. Use a Dedicated Router for Voice Traffic:
Do not use cheap or basic routers to connect your company’s branches or communication networks. You should purchase a router that prioritizes voice packets (Prioritizes VoIP Traffic).
These routers are not expensive, with prices starting from $100.
You should also ensure the router supports the SIP protocol, which helps deliver data reliably between client and server in the shortest possible time.
XonTel is one of the most important companies that focuses on the quality of phones and PBX systems, continuously updating them with the latest technologies and codecs to provide the best and most advanced technologies to its customers.
XonTel offers cutting-edge technologies that compete with global counterparts at competitive prices, along with a professional, highly skilled support team dedicated to understanding and meeting all customer needs with high accuracy and efficiency, making it the best choice.
For more information, contact us now click here.