Quality of service measures the overall reliability and performance of a data or telephony network. It evaluates quantitative metrics such as packet loss, bit rate, throughput, transmission delay, and jitter. Network engineers implement specific traffic shaping and prioritization protocols to maintain an acceptable quality of service for latency-sensitive applications like voice and video.
The client is complaining about poor quality of service on their SIP trunk during peak business hours.
Also heard as
- QoS
Do not mix it up with
- QoS: QoS is the abbreviation and often refers to the specific configuration mechanisms, while quality of service is the broader concept and measured result.
Related terms
QoS
A set of network mechanisms used to prioritize specific types of traffic over others.
Jitter
The variation in the delay of received packets or the deviation of a digital signal from its precise timing.
Latency
The time it takes for a packet of data to travel from its source to its destination.
SLA
A Service Level Agreement that defines the guaranteed performance metrics between a provider and a client.