VoIP Security Tips for Businesses

Cloud-based communications have gained popularity in the world of business. Instant adaption of existing system, convenient handling of thousands of calls every hour, easy addition/removal of conventional communication lines and constant connectivity to work anytime, anywhere are just some of the obvious reasons why VoIP is the ideal solution for today’s business communications.

However, due to its accessibility, security can be a problem if the system isn’t handled properly. To bulletproof your VoIP system from service failures, hackers and other digital risks, here are some tips for your VoIP system’s security.

1. Build Robust Network

Build up a robust network by asking your provider to analyze bandwidth requirements for your VoIP set up, checking your existing network requirement such as routers and switches and replacing old devices with updated ones. Doing the necessary checking and replacement will reduce chances of system failure in the middle of important operations, which can jeopardize critical data.

2. Adopt Data Encryption Tools

Using complex algorithms and ciphers, information can be changed into unreadable state, which helps ensure the security of electronic data. As VoIP data travels through several networks, the possibility of being corrupted grow intensely, which demands the need for encryption tools.

3. Use VPN

A Virtual Private Network (VPN) creates a secured connection between the sender and the receiver of the information, as if they operate in the same network. It adds a layer of encryption, which helps overcome complications linked to Session Initiation Protocol (SIP) trunking. Moreover, using VPN boosts your network and bandwidth capabilities.

4. Incorporate Authentication Tools

Service abuse and toll-frauds are the most common VoIP attacks. This charges users with expensive rates for calling from remote locations. A solution to this is to utilize mutual authentication protocols. It can be done by simply setting a password to authenticate communication between parties.

5. Protect the System with Firewalls

Firewalls act as a barrier between your VoIP system and cyber threats such as malware, Trojans and viruses However, firewalls should be installed carefully to ensure no VoIP traffic gets blocked. Your provider should be able to help you configure a robust network while constantly doing necessary upgrades, so that operations always run over updated version of VoIP technology and security firewalls.

6. Try Cloud-Based Service

There’s a fundamental problem with on-premise phone system: the business owner is the one responsible and accountable for a complex telephone system. Unless you’re an IT expert yourself, using an on-premise telephone system can be taxing and can potentially result to system failure. But with hosted phone service, it’s a guarantee that your system is managed by IT experts who specialized in VoIP PBX.


When communicating with business partners and clients through VoIP system, you are sharing confidential information over an expansive network.  Therefore, building and operating in a secured VoIP network is a necessity at all times. A combination of protection measures above will keep your network protected and ensure smooth progress of business processes.