International hacking of all types has increased by 10-fold in the last few years and the Nortel Phone System hack is no different.

Understanding the Nortel Phone System Hack

Even older phone systems, are running software, and that software can be hacked if firmware to secure is not available.

Most Nortel Hacks involved an insecure password in the voicemail such as “1234” and a caller can guess that.  Once in they can take over the system.

Once they are into the part of your phone system that allows for the customization of various settings, including those that can prevent toll fraud. Features under Configuration Programming like Restrictions, DISA (Direct Inward System Access), and Class of Service Passwords (COS) are vital for maintaining the security of your system.

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Norstar | Nortel | Meridian

Key Security Measures

• Change Default Passwords: Norstar systems, for example, come with a default configuration password. It’s crucial that this password is changed immediately after installation to prevent unauthorized access. Hackers who know the default passwords can easily gain access to your system.
• Implement Dialing Restrictions: You can use Restrictions to block specific area codes, and phone numbers, or even prevent long-distance calls. These can be set up for individual phones, lines, or combinations, ensuring that only authorized calls are made.
• Secure DISA Feature: DISA allows callers to dial an internal extension or an outside line directly after the system answers. If your business requires off-site employees to make calls billed to the company, make sure DISA is programmed to answer with a stutter dial tone. This tone indicates that a password must be entered before any call can be made, adding an extra layer of security.

We can provide Nortel Support

Organizations rely on their communication and we are here to help you keep your Nortel Phone System secure. To limit that unauthorized access not only leads to financial losses but can also compromise sensitive business information. Our team is dedicated to providing the support and solutions needed to protect your system from these vulnerabilities. We are authorized by Nortel Works to provide support on Nortel Networks Phone Systems, Meridian, and the Norstar.

We will guide you through implementing the recommended security measures, you can significantly reduce the risk of toll fraud and unauthorized calls. Remember, the first step in securing your phone system is understanding how these breaches occur and taking proactive steps to prevent them. Whether it’s changing default passwords, applying dialing restrictions, or securing the DISA feature, these actions are essential for safeguarding your business communications.

We’re here to support you through every step of this process. If you’re experiencing issues or need assistance in enhancing your phone system’s security, don’t hesitate to reach out. Together, we can ensure your communications are secure, reliable, and fraud-free.

Nortel Help Desk

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