6 Incredible Tips To Secure VoIP Telephony


Voice over the Internet telephony is booming these days because of its many benefits. Internet telephone systems are pocket-friendly ways to make a lot of calls. You don't need to pay heavy bills like PSTN phones. Also, subscribers get a lot of other benefits like conference calls, voice messages, etc., with VoIP telephony. Moreover, you get the software integrity option. All you need is a high-speed net connection to relish the amazing benefit of VoIP. Also, you can keep your existing phone number. Many savvy business VoIP service providers in Chicago assist you in this procedure.

Although there are so many advantages of voice over internet telephony, you still need to take extra security measures. The reason is that voice is transferred in the form of data packets. For instance, if the message sent is unencrypted from one point to another, anybody in the network can access it or eavesdrop on the conversation. Therefore, it is important to put VoIP security first in line. Otherwise, your organization has to pay a lot later. Furthermore, with weak VoIP security, anybody can unearth your company's sensitive and confidential information. This piece of article is all about 6 effective ways to improve internet telephony security. But, before discussing this in detail, let us have little insight into key security threats to VoIP systems.

      War Dialing

In war dialing, attackers dial many phone numbers to find the weakest point and then connect to the modem. After that, they take control over PBX and scan the network.


The people who trust their caller ID become victims of this attack. This is because they reveal internal IP network details, passcodes, and other sensitive information unknowingly to the attacker.


Undoubtedly, the voicemail box is the top target of cybercriminals. They hack them and steal vital information from the business organization.

      Toll Fraud

Like war dialing, this attack also becomes effective only if you dial a number outside your network. The attacker will try to entice you by making a call from an expensive overseas number.


Denial Of Service attacks strive to interrupt the ongoing calls. Generally, DOS is performed on call centers of the businesses to degrade the quality and uptime of voice calls.

      Call Redirection

Scammers gain access to your internet telephone system and re-route the class to fetch confidential information of the customers.

6 Proven Tips To Secure VoIP Telephone System


      Install Strong Firewall

A robust firewall is essential for IP-based telephony. This controls the incoming and outgoing traffic and makes certain that the line is terminated at the end of the session. Moreover, it also pinpoints distrustful calling patterns. So pick up the phone and consult with your VoIP business service provider, whether they are providing you with these features or not.

      High-Level Encryption

Apart from strong firewalls, top-secret level encryption is also required in VoIP systems. It prevents your voice calls from eavesdropping. Although most of the VoIP telephony solutions claim high-level data encryption, it is pivotal to verify how effective it is in actuality.

      Keep Upto Date

You need to update your organization's VoIP system frequently to avoid cybercriminals. This especially applies to firmware to keep everything running.


If some of your employees work remotely, it is vital to set up a virtual private network for extra safety. It works just like a tunnel between two points. VPN adds an extra layer of encryption and reduces the complications related to SIP (Session Initiation Protocol) trunking.

      Watch Call Logs

Another way to secure VoIP telephony from cyber threats is by inspecting the call logs of the company from time to time. On detecting suspicious calling trends and behavior, it is vital to consult the VoIP service provider promptly.

      Shut Down Inactive Accounts

When an employee leaves your company, always shut down their VoIP accounts. By doing this, you can alleviate workplace disturbance and cyber threats as well.

      Use Strong Passcode

Always use strong password authentication to access confidential information: include alphanumeric, numeric, lowercase and uppercase letters.

 The Bottom Line:

In addition to the above tips, it is important to educate employees on cybersecurity. It can be done by providing them with efficient training on potential security threats.

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