Add names to Hangouts video calls in Google Calendar

Starting January 29th, you will be able to give a name to Hangouts video calls in Google Calendar events. This name makes it easier for you and other guests to join the video call. Note that this feature is only available to domains that have enabled Google+ Premium Features.

Release track:
Scheduled release

Editions included: 
Google Apps for Business, Education, and Government

For more information:
https://support.google.com/a/answer/4362302

Reference by : http://www.google.com/