VoIP Vulnerability Assessment & Penetration Testing
Secure your voice and unified communications infrastructure
Protect Your Voice Communications
VoIP and unified communications systems are critical business infrastructure that often contain sensitive conversations and data. Our VoIP VAPT services identify vulnerabilities in your telephony systems, SIP trunks, and UC platforms that could allow eavesdropping, toll fraud, or service disruption.
VoIP Vulnerability Assessment & Penetration Testing Assessment Types
SIP Infrastructure Testing
Test SIP servers, proxies, and registrars for authentication bypass, injection attacks, and configuration weaknesses.
Unified Communications Testing
Assess Microsoft Teams, Zoom, Cisco WebEx, and other UC platforms for security vulnerabilities.
PBX Security Assessment
Evaluate IP-PBX systems including Asterisk, Cisco, and Avaya for misconfigurations and vulnerabilities.
How it works?
Our VoIP Testing Methodology
We use specialized VoIP security testing techniques to assess your voice communications infrastructure.
VoIP Infrastructure Discovery
Map all VoIP devices, servers, SIP trunks, and communication paths.
Protocol Analysis
Analyze SIP, RTP, and other VoIP protocols for security weaknesses.
Authentication Testing
Test SIP authentication, extension security, and voicemail access controls.
Attack Simulation
Simulate VoIP attacks including eavesdropping, toll fraud, and DoS.
Compliance Assessment
Evaluate compliance with telecommunications security requirements.
Common vulnerabilities we tackled in the past
SIP Authentication Bypass
Toll Fraud
Call Eavesdropping
Caller ID Spoofing
VoIP DoS Attacks
SRTP Downgrade
Voicemail Hacking
Extension Enumeration
RTP Injection
Man-in-the-Middle Attacks
Default Credentials
Unencrypted Media
Do you know?
$1.8B
lost to toll fraud globally in 2025, with VoIP systems being primary targets.
46%
of organizations have experienced VoIP-related security incidents.
89%
of VoIP systems tested have at least one critical vulnerability.
Get more with Digital Defense
Communication Security
Protect sensitive business conversations from eavesdropping.
Fraud Prevention
Prevent costly toll fraud and unauthorized call routing.
Service Availability
Protect against DoS attacks that could disrupt communications.
Compliance
Meet regulatory requirements for communication security.