Updated: 1/22/25
We all know the internet can be a dangerous place. From dealing with malware to having accounts hacked, it’s natural to feel uncertain about the security of any internet-connected technology. This concern often extends to VoIP phone systems. After all, anything connected to the internet can be vulnerable to malicious attacks.
At TeleCloud, we understand these concerns and work tirelessly to ensure your VoIP system is secure. Our robust security measures are designed to protect your system from common vulnerabilities, giving you peace of mind and allowing you to focus on running your business.
What Are the Common Security Risks for VoIP Phone Systems?
A VoIP phone system operates similarly to a data network and can be susceptible to similar threats. Knowing these vulnerabilities is the first step toward securing your system. Here are the most common VoIP security risks:
1. Denial of Service (DoS) Attacks
A DoS attack floods your system with fake requests, causing VoIP services to fail. This could result in dropped calls and busy signals for inbound callers.
2. Toll Fraud
In this scenario, a compromised system or phone forwards calls to unauthorized numbers, often international, resulting in unexpected charges.
3. Compromised Voicemail
Default voicemail passwords are vulnerable to brute force attacks, allowing unauthorized users to access sensitive voicemails.
4. Registration Hijacking
Attackers can disable valid SIP registrations and replace them with their own IP addresses, intercepting and manipulating your calls.
5. Vishing (Voice Phishing)
Similar to email phishing, attackers pretend to represent legitimate businesses to extract confidential information like login credentials.
How Does TeleCloud Protect Your VoIP System?
We take a proactive, multi-layered approach to security, implementing industry best practices to protect your VoIP phone system. Here’s how we safeguard your communications:
1. Trusted Hosts
We configure Trusted Hosts on both our hosted platform and your firewall. This ensures that only authorized IP addresses can access your system, blocking unauthorized traffic and preventing DoS attacks.
2. Firewall Security
By closing unused ports and securing open ones, we prevent attackers from remotely accessing your network. Additionally, we use firewalls to mitigate flood attacks, ensuring the integrity of your system.
3. Password Protection
Changing default passwords for phones and voicemail boxes is critical. We encourage strong, unique passwords during setup to prevent unauthorized access.
4. International Call Lockdown
To combat toll fraud, we implement PIN codes for international calls. This adds an extra layer of security, ensuring only authorized users can make these calls.
5. Ongoing Monitoring and Updates
Security threats evolve, and so do our defenses. We constantly monitor for new vulnerabilities and update our systems to protect against emerging threats.
6. User Education
Social engineering remains a significant risk. We educate users to recognize phishing attempts and to avoid sharing sensitive information with unknown callers.
Why Prevention Is Key to VoIP Security
The best way to protect your VoIP phone system is to stay ahead of potential threats. Taking preventative measures not only secures your system but also minimizes downtime and costly disruptions.
At TeleCloud, we’re committed to staying ahead of security issues by monitoring for new exploits and adopting the latest protective measures. Our goal is to provide a secure, reliable communication system for your business.
Ready to Secure Your VoIP System?
Don’t leave your communications vulnerable to attacks. Schedule a free consultation with a TeleCloud telecom expert to learn how we can secure your VoIP system and protect your business from potential threats.
By Jay Morales
Project Coordinator, Tele-Data Solutions
E-mail: jay@tele-datasolutions.com | Direct Line: (908) 378-1204
My name’s Jay, and I’m an engineer at Tele-Data Solutions. I’ve been in the telecom industry for two years and have been working in information technology for fifteen years, with a focus on system administration in the legal field. I specialize in remote support, and I always prioritize customer satisfaction!
