OSAKA -- NTT West Corp. said Monday that phone services were temporarily disrupted after a massive number of calls were placed by a firm suspected of operating a "wangiri" callback scam.
The problem occurred throughout Osaka Prefecture and in Amagasaki, in neighboring Hyogo Prefecture.
NTT West, a regional unit of Nippon Telegraph and Telephone Corp., halted the unnamed firm's telephone services after complaints about the disruption began pouring in around 10 a.m.
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