VoIP & Streaming Assessment

VoIP Success Requires Packets to be On Time

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.

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...?

"...customize the test for call lines and codecs..."

There are many significant metrics that must be measured on the network to assess that it is 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.

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.

Factors that have a big impact on VoIP Quality, such as available bandwidth. MCS supports the ability to customize the test for call lines and codecs, which all 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.