Which technology is NOT mentioned as a means of communicating threats for an intrusion system?

The choice of conventional landline phones as the means of communicating threats for an intrusion system is not typically highlighted as a current or effective technology in this context. Intrusion detection systems nowadays prioritize methods that offer higher reliability, faster communication speeds, and enhanced security compared to traditional landline phones.

While conventional landlines can serve as a basic means of communication, they are vulnerable to certain drawbacks such as physical disruption and lack of redundancy. In contrast, the Internet and digital communicators are more widely recognized for their ability to send real-time alerts and operate over a more secure and resilient infrastructure. Long-range radio or satellite systems also cover extensive areas and provide a backup communication method in case other channels fail. These technologies are favored in modern intrusion detection systems for their effectiveness in ensuring timely and secure notifications about potential threats.