FRISCO, Texas--(BUSINESS WIRE)-- #mobile--Tango Networks today announces Tango Extend for Webex Calling, empowering Cisco Certified Mobile Calling Providers to offer a native mobile communication solution for Webex customers. Tango Extend for Webex Calling enables Cisco partners who are part of the Cloud Connect for Webex Calling program to add Mobile Unified Communications to their customers, which drives efficiency, productivity, and collaboration in today's dynamic and increasingly mobile work environ