Symptoms
In a Microsoft Skype for Business Server 2015 environment, a delegator turns on the Skype for Business Call Forwarding feature to forward incoming calls to a delegate. In this scenario, the delegate who is using Skype for Business on Mac should see the delegator's name in the incoming call notification window so that the delegate can differentiate between a call to the delegator and a call to himself.
Resolution
To fix this issue, install the July 2018 cumulative update 6.0.9319.534 for Skype for Business Server 2015, Web Components Server.
