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Quality of Service and VoIP
December 6th, 2016

Quality of Service and VoIP

Hailee Franco

There are many features to consider when implementing a VoIP service including auto attendant, video conferencing, and voicemail to email. However, features aren’t the only thing those using a VoIP sh...

There are many features to consider when implementing a VoIP service including auto attendant, video conferencing, and voicemail to email. However, features aren’t the only thing those using a VoIP should consider. One service people don’t often think about is “Quality of Service”, which affects the overall performance of the VoIP service.

This service works to prioritize traffic types. This means the most important traffic is given top priority. So how does Quality of Service work and why does it matter for VoIP?

How Quality of Service works

When a business implements QoS they are choosing to prioritize certain traffic on their router over other less important traffic. This means the most important traffic passes through the router first and experiences far fewer delays.

Routers do this by making a projection on how much data they can receive. They then set an importance level to the traffic, delaying the traffic that they see as least important. This allows the traffic that is the top priority to go through the router, with fewer delays, making things like calls come in clearer. Traffic can be set by priority levels including high, medium, low, and critical.

Businesses that implement a VoIP service can prioritize incoming/outgoing calls as well as video, making them the highest priority. This will ensure calls and video always come in clear and do not have to fight for bandwidth with other traffic.

Why QoS matters for VoIP

Setting QoS means a business’s important data is always prioritized. For VoIP, this means every call comes in clearly without delays, echoes, noise, or other disruptions. Using QoS makes calls made through VoIP the same quality as those made through a landline.

Setting these priorities matters for businesses because if calls are delayed or not coming in clearly it can affect business practices. This is also true of other VoIP features like video conferencing. Low-quality video makes it difficult to hold meetings with clients and employees, which may lose businesses money or lower productivity.

Steps to take before establishing VoIP QoS settings

Before establishing your businesses QoS settings it is important to try to fix any existing problems with your audio and video quality first.

  • Test your phone connection by talking on your phone without any other traffic competing for bandwidth and see if there are any issues. If there are try setting a “bandwidth saving” setting and test again.
  • Check all computers on your network for spyware by performing scans on each device.

Ensure your voice and video traffic is always clear by using QoS settings to make them a top priority. Doing so will make sure business practices are never hindered, increasing productivity and making you money. Can your business afford to not set QoS for your VoIP service?


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