TOKYO--(BUSINESS WIRE)--NTT Communications Corporation (NTT Com), the ICT solutions and international communications business within NTT (NYSE:NTT), announced today the immediate availability of a developer portal for the NTT Communications API Gateway. The portal enables system developers to use their own IT systems to directly browse and customize information regarding the application, operation and management of NTT Com IT services. Interoperability with customer systems can be assessed by c