Summary
After you apply this update, Microsoft Skype for Business Server 2015 will enable Skype for Business on Mac clients and Skype for Business mobile clients to use the Rate my Call feature that provides a way for enterprises to achieve feedback from end-users. To get this update, install the January 2019 cumulative update 6.0.9319.537 for Skype for Business Server 2015, Web Components Server and the January 2019 cumulative update 6.0.9319.537 for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime.