A solid, dependable workhorse for call centers

I work in a support center for a rideshare app operating in one of the largest cities in the world, so call volume is daunting. We use TalkDesk to assign, take and transfer calls. It syncs up beautifully with our email client, Zendesk. The main business problem this tackles is that of contact organization-- we have hundreds of thousands of them, and TalkDesk lines them up and auto-populates tickets with incredible accuracy. Crashes are so rare that I remember each of them-- two total in about seven months. Support was excellent during these occasions.