TOKYO (AFX-ASIA) – Tokyo Gas Co plans to switch its entire internal phone network to Internet protocol telephony, including operation and maintenance, the Nihon Keizai newspaper cited company sources as saying. The company expects the move to at least halve its 1 billion yen annual telecom costs. Tokyo Gas is the first big Japanese firm…
JAPAN: Tokyo Gas to switch phone network to IP telephony; NTT Data to design
Posted on December 20, 2002 by EnergyAsia