MCLEAN, Va., May 22, 2008 – Global Telecom & Technology, Inc. (“GTT”), (OTCBB: GTLT), a leading global Multi-Network Operator ("MNO"), today announced the launch of its new Network Migration Service offering that allows companies to outsource the management of their global data networks.

With this service, GTT provides quoting, provisioning, and maintenance support for enterprise and carrier customers with complex networks that use multiple underlying vendors and traverse multiple countries.  GTT’s Network Migration Service also gives customers who are seeking a higher quality of customer service a viable alternative to their incumbent service providers.

GTT has successfully completed the migration of several large data networks, including the network for Avaya Germany (Avaya), a leading global provider of business communications software, systems, and services.  GTT continues to provide ongoing network design, implementation, and operations support on Avaya’s behalf.  This network is currently comprised of services from more than 20 underlying suppliers.

GTT’s Network Migration Service also helps large carriers migrate the management of their off-net traffic where they have limited expertise, or do not have the local experience to drive optimal price points.  GTT, utilizing more than 800 supplier relationships, provides network services to over 300 customers in more than 70 countries worldwide.

“GTT’s Network Migration Service is our direct response to the needs of the marketplace,” said Richard D. Calder, Jr., GTT’s president and CEO. “Companies choose GTT to outsource the increasingly complex task of maintaining their global data networks, thereby freeing them to focus on their core businesses.  As a Multi-Network Operator, we have expertise in managing multiple vendors and leveraging our extensive worldwide supplier relationships to create the most efficient network solutions for our customers.”

About GTT

GTT is a global network integrator that provides its clients with a broad portfolio of wide-area network and wireless mobility services. With over 800 worldwide supplier relationships, GTT combines multiple networks and technologies to deliver cost-effective solutions specifically designed for each client's unique requirements. GTT enhances client performance through our proprietary systems, comprehensive project management and 24x7 operations support. Headquartered just outside Washington, D.C. in McLean, Virginia with offices in London and Dusseldorf, GTT provides service to more than 300 enterprise, government, and carrier clients in over 70 countries, worldwide. For more information visit the GTT website at www.gt-t.net