Towards resilient VoIP infrastructure: Identifying critical vulnerabilities and proposing unified security enhancements
Technical Security Department, VOISIP Telecommunications Limited United Kingdom.
Review
Open Access Research Journal of Science and Technology, 2025, 14(02), 175-192.
Article DOI: 10.53022/oarjst.2025.14.2.0110
Publication history:
Received on 15 July 2025; revised on 26 August; accepted on 29 August 2025
Abstract:
Voice over Internet Protocol (VoIP) has transitioned from a novel technology to a cornerstone of organizational communication. However, the accelerated pace of VoIP adoption has amplified exposure to sophisticated security vulnerabilities. These vulnerabilities pose risks to confidentiality, availability, and integrity, and adversaries are increasingly targeting weaknesses in signaling protocols, media handling, device configurations, and network architectures. A unified, robust, and context-aware security model for VoIP is of great importance. This qualitative research paper delves into the existing vulnerabilities that continue to plague current VoIP infrastructures. Drawing from technical documentation, operational records, and security event analysis, the study provides an in-depth examination of vulnerabilities across different components of VoIP systems. The research also investigates recurrent patterns in VoIP security vulnerabilities, such as protocol weaknesses, misconfigurations, architectural inconsistencies, and inadequate policy enforcement. Moreover, it analyzes systemic factors that contribute to the persistence of these vulnerabilities across different organizations. Based on the insights gained, the study outlines a unified framework for security enhancements that focuses on strengthening architectural controls, harmonizing policy measures, and incorporating adaptive defense mechanisms. The results highlight that VoIP resilience cannot be solely achieved through isolated countermeasures but rather through a holistic, multilayered approach that collectively addresses technical, operational, and organizational gaps. This framework offers valuable contributions to the existing discourse by providing a unified pathway toward robust VoIP security, improved governance, and enhanced infrastructural resilience.
Keywords:
VoIP Security; Network Resilience; Unified Security Framework; Protocol Vulnerabilities; SIP Security; Cybersecurity; Secure Telephony
Full text article in PDF:
Copyright information:
Copyright © 2025 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0