Symptoms
Assume that you have installed the latest updates for Skype for Business Server 2015. When you make an E911 (enhanced 911) call in Skype for Business on Mac, the call is connected to the E911 call center. However, the received location information is in an incorrect format.
Resolution
To fix this issue, install the December 2017 cumulative update 6.0.9319.510 for Skype for Business Server 2015, Web Components Server.