Nippon Telegraph and Telephone Corp. and AT&T Corp. of the United States announced Tuesday that they are joining hands in global network solutions, which has become a fast-growing segment in the telecommunica tions industry as multinational companies outsource man agement of their global communications.

"Our collaboration with NTT demonstrates AT&T's dedication to meeting the managed-services needs of our customers in Japan and around the world," AT&T Chairman C. Michael Armstrong said during a joint news conference.

The field covers consulting, designing, deploying and managing networks.