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Session Initiation Protocol: Security Issues Overview
Bruno Cruz, Rui Filipe Pereira
Pages - 181 - 192     |    Revised - 31-10-2021     |    Published - 01-12-2021
Volume - 15   Issue - 6    |    Publication Date - December 2021  Table of Contents
Session Initiation Protocol (SIP), SIP Security, Voice over IP (VoIP).
The leading method of correspondence is clearly through voice trade. There are essentially two different ways through which voice can be effortlessly communicated on an organization: PSTN (Public Switched Telephone Network) and VoIP (Voice over Internet Protocol).

Mainly represented by SIP, VoIP protocols and implementations contain several vulnerabilities, particularly related to their complexities and in the face of interoperability of telephony equipment’s.

It was by identifying a lack of literature with focus in security and potential vulnerabilities of the SIP Protocol that we propose in this document. We attempt to provide a theoretical analysis from security aspects used by one of the signaling call protocols, Session Initiation Protocol (SIP).

It is intended to lucidly illustrate and identify threats, vulnerabilities, security mechanisms, developed methods and protocols and, finally over time improvements.
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Mr. Bruno Cruz
Department of Informatics Engineering, Coimbra University, Coimbra - Portugal
Mr. Rui Filipe Pereira
Lab UbiNET – Computer Science, Security and Cybercrime, Polytechnic Institute of Beja, Beja, - Portugal