How do I know my network is set up for high-quality VoIP?




When implementing your VoIP system, you will need to ensure your network is capable of delivering a high-quality call experience for your business. The issue is how to guarantee that the packet traffic for your voice connection on your network will not be delayed or dropped due to interference from other lower priority traffic.

What can cause a low-quality call experience?

  • Jitter – The inconsistency of packet timing and which results from network congestion, timing drift and rout changes. Jitter is problematic to your business as it can cause strange sound effects and degrade the quality of your phone service.
  • Latency – The time between the moment a voice packet is transmitted and the moment it reaches its destination. Latency can cause an echo due to slow network links.
  • Packet Loss – This occurs when a large amount of traffic on your network causes dropped packets due to congestion. This results in dropped calls; call delay, or even a disturbing noise on the call.

Testing before buying

A great VoIP experience starts with great QoS (Quality of Service). The best way to ensure a great QoS is by testing for QoS issues BEFORE you sign up any voice services.

Many QoS issues can be easily identified and fixed before implementing voice services. Top tier providers should only bring you into their system once they are confident that your network will support VoIP and provide great QoS. As such, the provider should work with you during the sales process by testing your systems and making sure it is ready for high quality VoIP.

You will want the provider to pre-qualify your data connectivity and network by verifying that:

  • Your internet circuit has sufficient capacity for VoIP
  • Your internet circuit is reliable and has consistent quality 

  • The ISP is reliable and can support VoIP

  • The network equipment supports VoIP 

During implementation of your voice service, you want to work with your provider to re-qualify the network during the onboarding process because environments and situations are not static and can change over time. This process includes: 

  • Reconfirming bandwidth, compatible ISP and network equipment
  • Optimizing network equipment for VoIP
  • Verifying that their equipment will register and make a quality phone call

Choose a provider that constantly monitors QoS

Testing is just one piece to ensuring voice cloud QoS, your want your provider to proactively monitor their voice cloud to ensure the highest call quality for your business. As calls flow through your provider's voice cloud and the different network components (PBXs, SBCs, and network routers), each component collects statistics. The statistics are added to call-detail-records, which are then added to an internal database. Every minute, internal systems query the database looking for problems related to connectivity loss, latency, jitter, and packet-loss on a trunk-by-trunk basis.

By constantly monitoring each call in depth, your provider can automatically or manually
intervene and resolve QoS issues without your involvement. And they can conduct a real-time analysis of regional and carrier issues, allowing them to evaluate their carrier's performance proactively and eliminating those that prevent high-quality voice calls.

When you’re considering a cloud service provider for your business, remember that your network's performance plays a vital piece to the success your business. The provider you choose should be committed to providing a high-quality call experience to you and your customers. 

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