In the era of digital-first communication, Voice over Internet Protocol (VoIP) technology plays a pivotal role in connecting people. For companies like Carbyne, which powers Next Generation 911 (NG911) services, VoIP is not just a communication tool—it’s a lifeline. However, the growing reliance on VoIP comes with a critical challenge: the threat of Distributed Denial of Service (DDoS) attacks, including a specific and dangerous variant known as Telephony Denial of Service (TDoS).
What Are VoIP TDoS and DDoS Attacks?
A VoIP DDoS attack involves overwhelming a VoIP server with excessive traffic, rendering it unable to process legitimate calls and requests. TDoS attacks, a form of DDoS that specifically targets telephone systems, aim to flood call-handling infrastructure with repeated call attempts. These calls may be silent, automated, or spoofed, and they effectively block access to emergency lines.
For NG911 systems, the implications are severe: delayed emergency response times, degraded call quality, or even outages—scenarios that Carbyne works tirelessly to prevent.
Attackers often use botnets—networks of compromised devices—to flood VoIP and TDoS infrastructure with malicious traffic or call attempts. These attacks can severely disrupt essential services, jeopardizing public safety and eroding trust in emergency communication systems.
Why NG911 Services Are Targeted
Emergency services like those supported by Carbyne are especially attractive targets for cyberattacks. The high-stakes nature of emergency communication makes any disruption particularly damaging. Whether it’s a volumetric VoIP DDoS flood or a targeted TDoS campaign, attackers know the consequences can be profound.
Carbyne’s Strategies for Securing NG911 Against VoIP DDoS and TDoS Attacks
To safeguard its VoIP-based emergency communication platform, Carbyne employs a multi-layered approach to security that includes specific countermeasures for TDoS threats:
- Advanced Traffic Filtering with Session Border Controllers (SBCs):
Carbyne integrates SBCs as a key security measure. These devices act as intelligent gateways, filtering out malicious VoIP and TDoS traffic while ensuring legitimate emergency calls are processed without delay.
- VoIP-Specific Firewall Implementation:
Unlike traditional firewalls, Carbyne deploys VoIP-optimized firewalls designed to handle SIP-based threats. These also help identify and block repetitive, non-human TDoS call attempts.
- Proactive Bandwidth Management:
By prioritizing emergency communication traffic and implementing call admission control, Carbyne ensures uninterrupted voice and data transmission during peak periods or TDoS/DDOS attempts.
- Real-Time Monitoring and Incident Response:
Continuous monitoring of network and call traffic allows Carbyne to detect unusual patterns such as call floods or SIP anomalies. This proactive stance enables rapid mitigation of TDoS campaigns to minimize service disruptions.
- Regular Updates and Patching:
To combat evolving threats, Carbyne keeps its VoIP and call management infrastructure up-to-date with the latest security patches and protections against known TDoS vectors.
- Redundant Systems for High Availability:
Recognizing the life-or-death nature of its services, Carbyne employs redundant and geographically distributed systems to ensure NG911 services remain operational—even during complex TDoS or DDoS attacks.
Carbyne’s Commitment to Secure NG911 Services
As a leader in NG911 technology, Carbyne understands that the reliability of emergency services depends on securing its infrastructure against evolving threats like VoIP DDoS and TDoS attacks. By adopting advanced security controls, fostering a culture of vigilance, and maintaining real-time defenses, Carbyne ensures that its platform remains resilient and dependable.
Looking Forward
VoIP DDoS and TDoS attacks serve as a powerful reminder that innovation and security must go hand in hand. At Carbyne, we remain steadfast in our mission to provide secure, reliable emergency communication solutions. Because when every second counts, there’s no room for compromise.
For more insights into Carbyne’s NG911 platform and security innovations, visit our website or contact our team.