Description: Telephony security refers to the measures implemented to protect telecommunications systems from unauthorized access and malicious attacks. This includes the protection of information transmitted over telephone networks, as well as the integrity and availability of communication services. Telephony security encompasses various techniques and technologies, such as data encryption, user authentication, and the use of firewalls and intrusion detection systems. The importance of this security lies in the growing reliance on telephone communications in everyday life and in the business realm, where confidentiality and integrity of information are crucial. Furthermore, the evolution of cyber threats has led to a more proactive approach in implementing security measures, ensuring that telephone networks are resilient to attacks such as phishing, espionage, and sabotage. In an increasingly interconnected world, telephony security has become an essential component for protecting both individual users and organizations from potential vulnerabilities and risks associated with digital communication.