Slack - A messaging app for teams who see through the Earth!
Callpage - Turn website visitors into sales calls. Use CallPage and provide immediate free phone callback to your leads in 28 seconds.
Meet for Slack - Quickstart Google Meet from your Slack workspace
Novocall - Novocall converts web visitors into sales calls in seconds.
WifiCall - Make unlimited calls to anyone from anywhere
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.