SALT LAKE CITY, UT, ROCHESTER, NY, BOSTON, MA, LONDON, July 09, 2024 (GLOBE NEWSWIRE) -- CallTower, a global leader in delivering unified communications, contact center, and collaboration solutions, including Microsoft Teams, Webex by Cisco, and Zoom, announced today that CRN®, a brand of The Channel Company, has named Sam Barron, Global Director of Sales, as…