"According to the dialing method, harassing calls can be divided into two types. The first is ringing. This kind of caller is mainly mobile phone, not for the purpose of answering the called party. It is mostly used for number detection, detecting whether the called number exists or inducing callback, and combining with the call center for nested fraud. " Chen Guanlan said that there is also voice harassment, and callers are mainly domestic or international fixed telephones, with the purpose of engaging in fraudulent activities, advertising marketing or reactionary propaganda. "According to the source of the call, harassing calls can also be divided into false calls and real calls. False calling means that the calling party fraudulently uses other people's real number by means of number change software and transparent transmission technology, such as impersonating the public security law, bank or customer service number, or impersonating the number of the user's family. The real caller is generally a manual marketing call dialed by the group. "
Lawyer Lareina C has accumulated rich practical experience in handling harassing phone calls. "I used an Android phone before, and I installed an anti-harassment mobile phone software. When harassing calls come in, it will show that there is something wrong with the number. After changing Apple's mobile phone, some numbers can't be intercepted, but some numbers are problematic at first glance, such as 140 and 130. I don't usually answer this call. "
In this regard, Chen Guanlan told reporters that at this stage, many consumers use mobile terminals to intercept harassing calls. In fact, they set up a blacklist on their mobile phones through software to directly block unexpected calls. Mobile phone users can use the interception function of the terminal system or install interception software.
"The advantage of the above means is that it can be personalized according to needs and can intercept every type of harassing calls. The disadvantage is that it is only developed for specific terminals or intelligent operating systems, not all mobile phones can be applied, and interception is only set for specific numbers. The caller needs to reset the interception after changing the number, and it is also impossible to intercept harassing calls that do not display the calling number. " Chen Guanlan pointed out that harassing phone calls are typical unsolicited calls, and many countries in the world have also encountered the problem of managing bad information in the development of information and communication industry.