Skype for Slack - Move your slack discussions to a group skype call
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Calls on Slack - Make voice calls in Slack
IntercomExport - Export Intercom conversations to CSV
Pingly - Your communication hub — Email, text & voice in one app
Intercom via SMS - Convert incoming customer texts into Intercom conversation