Ok who is it? Own up!
A Japanese man has been arrested after making 37,760 silent calls to directory inquiries.
The 44-year-old said he wanted to listen to the "kind" voices of female telephone operators. He has admitted to making up to 905 calls a day from his mobile phone, according to the Mainichi Shimbun newspaper.
"When I made a complaint call once, the operator dealt with it very kindly, so I wanted to hear these women's voices," he reportedly told police in Hiroshima.
Police believe the calls, made between March and July this year, caused psychological distress to more than 100 telephone operators.
They have charged the man with obstructing the operations of Nippon Telegraph and Telephone Corp.