The following phone number just rings twice and then disconnects the caller: '02-6406-9050'. Don't accept or return any calls from this number.
In addition, you may wish to disregard any incoming calls that from unknown numbers and ring only once or twice before hanging up. The fees for calls from or to these numbers is astronomical.
Recently Ahnlab warns that when the phone rings just once and then ceases, the recipient should not dial back. As soon as a call is made to that number, no one will pick up on the other end, and KRW 23,000 will be automatically charged.
Since it is a cutting-edge system, police warrants can not do anything about it. Ahnlab asks people to be cautious.
For your health, here is some more advice from the Apollo Medical Team regarding mobile phone use. When you send a phone call through a mobile phone, you are not advised to put the phone up to your ear until the after the recipient answers because the mobile phone reaches its maximum signaling power of 2watts=33dbi immediately after dialing. Also, you might want to hold your phone up to your left ear during the phone call. There is a higher chance to incur detrimental health effects when holding the phone up to your right ear because the electromagnetic waves from the phone can affect the brain directly.
