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Why Quality of Service is Critical For Enterprise Cloud Services

Ring Central Blog


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3 min read

“The UCaaS market is accelerating at an annualized rate of 29% due to the continued erosion of on-premises PBX systems, which declined -11%, and the rapid pace of adoption among enterprises that are migrating to the cloud looking for richer and more cost-effective collaborative communication solutions,” says Jeremy Duke, Synergy Research Group’s founder and chief analyst.

Companies of all sizes can see the trend and they want to take advantage of it.  They sign up with a provider and buy new IP-based phones as suggested by the provider, then they turn up the service only to discover that voice quality is substandard or unusable.  Unlike PSTN, where a closed-loop, dedicated circuit ensures consistently good voice quality, VoIP traffic travels over shared, packet-switched networks. Packets follow the most efficient route in the network towards the destination.

This same route is used by everyone else connected to the Internet, for data flows as well as voice.  Unfortunately, voice has different requirements than data in an IP network. Voice depends on lots of very small packets (50 packets per second per connection) all being transmitted in order and being placed on the network immediately. Data sharing applications, on the other hand, transmit huge chunks of data all at once. If nothing is done to remedy the situation, voice is constantly being delayed by data traffic, often to the point where it is unusable.

Quality of Service (QoS) is imperative for delivering reliable business communications over the Internet.  

QoS involves classifying and prioritizing traffic throughout a network. That is, QoS enables you to establish an end-to-end traffic priority policy to improve control and throughput of important data. You can manage available bandwidth so that the most important traffic goes first. For example, you can use Quality of Service to:

RingCentral, a leading VoIP platform ensures the best quality of service for its customers by investing in the following areas to ensure the best end-user experience:

QoS is imperative for delivering reliable business communications over the Internet without reactively expanding or over-provisioning of networks.

To learn more about using QoS mechanisms, that employ resources efficiently and ensure the required level of service check out our approach and guidelines on QoS policies.

Originally published Mar 08, 2018, updated Apr 18, 2021

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