Application Specific Signature for Ring Central
There is no Application Specific Signature for Ring Central, which means we can't apply Application-based Traffic Shaping Policy for it.
Please add Ring Central as a defined Application.
See below:
https://community.ringcentral.com/ringcentral/topics/how-do-i-troubleshooting-call-quality-issues-qos
https://www.ringcentral.com/support/qos-router.html?_ga=1.41909153.2038724511.1480961611
