Let's Corporation Furikome Scam Surveillance Team: It's Serious! Fixed-Line Telephone Automatic Call Recording (Warning) Device I installed this on my landline, and it was incredibly effective. The setup is a little tricky, but once you set it up, you don't have to do anything else. If you're looking for a way to combat special scams, please take this opportunity. 【 Product Description 】 ・This product announces to the caller when a call is received, "This call is being automatically recorded to prevent criminal damage such as furikome scams." This creates a deterrent effect if the caller is a furikome scammer. It can handle incoming calls from all types of phones, including general telephones, public phones, and international calls. ・Does not play warning sounds for calls from permitted numbers. For those registered as the reporting destination for the "It's Serious!!!" button, you can prevent the warning sound from playing upon receiving a call. ・Does not connect calls from non-displayed numbers. When receiving a call from a non-displayed number, it announces to the caller, "Please display your phone number and call again," and prevents the call from being connected. (ON/OFF possible)