BARCELONA -- Mobile World Congress may officially open its doors on Monday Feb. 22, but Barcelona is already buzzing with communications industry meetings and networking on what is now known as 'Day 0' of this annual event.
One of the key gatherings today is at the Crowne Plaza hotel in central Barcelona, where high-level industry executives -- including John Donovan, Chief Strategy Officer and Group President, AT&T Technology and Operations, AT&T Inc. -- from the world's leading network operators gathered for the Digital Operations Transformation Summit.
Check out what happened in this slide show. Click on the picture below to start the show.