NTT East and NTT West held a “Symposium to Improve Network Quality” in Tokyo on Thursday, the 18th. They shared with participants their industry-changing efforts to improve network quality, including “integrated development and testing between telecommunications carriers and telecommunications equipment manufacturers,” as well as their outlook for the future.

In response to the large-scale communications outage that occurred on April 3, 2023, NTT East and West signed Memorandums of Understanding (MoUs) with five telecommunications equipment manufacturers (Cisco, Juniper, NEC, Fujitsu, and Nokia) to foster a close collaborative environment, including joint testing that takes into account telecommunications carrier usage and the establishment of a rapid information sharing system.

The large-scale communications outage at that time occurred simultaneously on multiple subscriber access devices owned by NTT East and West, causing FLET’S Hikari and Hikari Telephone services to be unavailable or difficult to connect. At the time, no equipment work was being carried out that would have caused the communications outage, and the failure occurred only with equipment manufactured by an overseas manufacturer.
NTT East and West recognize that in order to provide stable communications services, they need to strengthen their collaboration with communications equipment manufacturers more than ever before and make efforts to identify potential equipment malfunctions. They have concluded an MOU and are strengthening their collaboration with the aim of building a system to shorten the time it takes to restore service in the event of a failure.

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