VOIP Penetration Testing

Voice over Internet Protocol (VoIP) Penetration Testing

Cyber attacks pose numerous threats to VoIP telephone systems, such as the capture of inbound and outbound calls through network manipulation, recording or listening in on calls, gaining access to internal networks through the voice VLANS and use of the network to make outbound calls (toll fraud).

In order to facilitate correct operation of VoIP devices, VoIP systems often operate outside of normal network security controls. Xyone is able to assist you in securing your system’s SIP and H.323 endpoints whilst providing peace of mind against toll fraud.

We will assess your network infrastructure, VoIP components and authentication methods, and their capability to prevent manipulation between your clients and VoIP server to determine the scope of your security, providing a detailed report and recommendations for remediating issues and vulnerabilities.

Voice over IP Testing

VoIP Penetration testing Methodology

  • Footprinting of SIP Services
  • Enumerating SIP Services
  • Registering SIP Service with/without Credentials
  • Brute Force Attack for SIP Service
  • Call Initiation with/without Spoof & Credentials
  • Hacking Trust Relationships
  • Intercepting SIP Client with SIP Proxy
  • Toll Fraud Exploit Testing

CREST-certified penetration testing service

CREST PT penetration testing
For our Penetration Testing Services, we are proud to have a team of experts with a variety of accreditations across the cyber security service provision. Namely, these accreditations include CREST, CEH (Certified Ethical Hacker), CHECK (Qualified Team Leaders), GWAPT (GIAC Web Application Penetration Testers) and CISSP (Certified Information Systems Security Professional) consultants.

Penetration Testing Services

Wi-Fi penetration testing
Wi-Fi Penetration Testing
The Wi-Fi networks of your business or firm are important resources, but are also at risk to threats from anyone in their proximity. This form of penetration testing requires us to be on your site in-person.
Web App Penetration Testing
Web penetration testing
Web Application Penetration Testing will identify vulnerabilities which could be accessed through online cyber attacks. An exploitation can result in the theft of information and irreparable damage to your systems.
Mobile penetration testing
Providing employees with devices that they can use to access valuable and critical data whilst away from the office, or allowing them to use their own, can present a number of security issues. We can help.
Cloud penetration testing
Cloud penetration testing
Security should be a key consideration when selecting a cloud services provider, and our Cloud Penetration Testing Service can help you determine how secure your assets in the cloud really are.
Network penetration
Network Penetration Testing
Network Penetration Testing goes beyond vulnerability scanning, to evaluate a system’s security, while attempting to expose and exploit vulnerabilities and weaknesses through a simulated attack.
App Database Penetration Testing
Database penetration testing
Our pen test team and qualified consultants will simulate an attack in the same way a hacker would to attempt access into your database using best practice methodologies and our own additional techniques
Physical Security Checks
Physical penetration testing
How can you know what is putting key assets of your workplace at risk? We have a team of cyber security experts trained in performing tests to see what could be compromised physically, and how to remedy this.

Request a Quote

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    Contact details

    For any further information, please contact us.


    Xyone Cyber Security Solutions Ltd, InfoLab21, Lancaster University, Lancaster, LA1 4WA


    +44 (0) 333 323 3981


    [email protected]

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