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VoIP & Streaming Assessment


A network has a specific time window to deliver a voice/video packet and, much like heading to the airport to catch a flight, being on time is the key to a good user experience.

VoIP Success Requires Packets to be On Time


In the case of a VoIP call it's not just one packet that has to be on time, every packet has to be on time, and in both directions. The definition of time is not measured in seconds, but thousandths of a second!

So, what does this mean for network measurement...?

There are many significant metrics that must be measured on the network to assess that it has good Quality for Voice. One of the most significant metrics is Jitter. Jitter defines the amount of time between the packets traveling on the network. This time must be consistent for all packets.

a graph showing a voip jitter and loss result
example voip detailed report

All VoIP measuring solutions will measure Jitter


However, to ensure absolute quality MCS measures not only Jitter but also peak Jitter, discard Jitter as well as average Jitter. Why?

Equally important is packet loss. MCS measures not only packet loss but also the distribution of that loss. Why?

MOS score is also reported, which is the popular metric for overall VoIP health.

Also factors that have a big impact on VoIP Quality, such as available bandwidth are supported by MCS's ability to customize the test for call lines and codecs, which consume bandwidth.

How many calls can your network support?

MCS provides a sophisticated VoIP Capacity assessment, which quickly validates the number of calls/phones that can operate on any given connection.