Hi,
I am pleased to announce that GoToMeeting now has an integration with Slack!
Simply enter /g2m or click the phone icon* in a channel to launch GoToMeeting. Once it’s started, everyone else in the channel will see a link to join from their browser or through the GoToMeeting app. You will need a GoToMeeting account to start meetings, and your Slack admin will have to enable the integration.
Get GoToMeeting for Slack here in their App Directory
*Your Slack admin will need to enable this feature through the Workspace Settings.