Along with the science and technology development, using modern communication equipment such as the handset, fixed telephone to extort, threat, kidnap, sexually harass become more and more serious.

• 摘要随着科学技术的发展，利用手机、座机等现代通讯设备进行敲诈、勒索、恐吓、绑架、性骚扰等案件越来越多。