Since Skype for Business Online was retired on July 31, 2021, we have introduced a new predefined Microsoft Teams Test, which tests TCP connectivity to the front door of the Microsoft network using the Microsoft anycast IP address (13.107.8.2).

We recommend replacing your Skype for Business test with this new test.

On VOIP MOS tests, DSCP tag 48 is mapped to VoIP traffic on Wi-Fi and DSCP tag 46 is mapped to VoIP traffic on Ethernet.

TCP Pings are typically blocked on a proxy network and therefore a VoIP mos test won't be executed on a proxied network unless the “Force TCP Ping” flag is explicitly set on that network’s settings.

How is the perceived MOS Score calculated?:

Refer to our article on Skype MOS: http://help.capenetworks.com/en/articles/1927416-skype-mos