I tried google hangouts, but it too much centered in the video, Skype always fails, and I can't seem to find any tool to have the first interaction with a client. Basically I'd need a imessages/whatsapp app, without using my real phone number. or a web-based chat room...
Great tool that has helped us increase our leads by 3x and reduce support requests handled by the sales team.
Drift is a great complex platform to support your sales, especially interesting for more demanding customers.