The communications artificial intelligence wars continue unabated as every unified communications-as-a-service and contact center-as-a-service vendor loads its products with new capabilities to one-up the competition. Today RingCentral Inc. added several new capabilities to RingCX, its AI-powered contact center solution. The California-based contact center solutions provider has added about 300 features to RingCX in the past quarter, bringing the total to more than 1,300.