SoftBank's mobile outage hits swath of Japanese businesses
Nikkei -- Dec 07
SoftBank's mobile service outage Thursday across much of Japan disrupted operations ranging from flights and trains to amusement parks and logistics companies, illustrating both corporate and consumer dependence on wireless communications networks.

SoftBank phones lost signals at 1:39 p.m., affecting voice and data communication for more than four hours before connections were restored at 6:04 p.m. The outage hit the mobile unit of SoftBank Group ahead of its initial public offering on Dec. 19, which is expected to be one of the largest ever worldwide.

Budget carrier Jetstar Japan delayed seven flights at Narita Airport near Tokyo by as much as 15 minutes. The portable devices used to check plane tickets at the gates go through SoftBank's networks, but the airline was forced to make do with manual checks.

East Japan Railway experienced problems with the transit app Mobile Suica. Riders were unable to purchase shinkansen tickets or first-class seating on conventional trains.

Logistics companies also were affected. At Sagawa Express, part of SG Holdings, drivers could not access collection requests or redelivery information on mobile devices. Drivers were unable to make voice calls on cellphones.

Tokyo Disney Resort, operated by Oriental Land, encountered customers who were unable to display electronic tickets on their smartphones.

The SoftBank service interruptions were linked to software made by Swedish telecom company Ericsson. SoftBank said Thursday that software troubles occurred at Ericsson switching facilities in Tokyo and Osaka.

News source: Nikkei
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