VoIP technology has become one of the most affordable, convenient ways of communicating. Most people use it without even realising it. Every time you make a WhatsApp call or video someone on FaceTime, that’s VoIP at work.
All it really means is that these calls are transmitted using the Internet, rather than standard telephone lines. While this has its perks in terms of cost and reliability, it can also be a security challenge.
Since these calls use public Internet, it leaves them vulnerable to multiple threats. Hackers could intercept your calls or reroute them entirely, and how can you properly verify the person on the other line?
Can Blockchain Make VoIP Calls Safer?
One might not immediately place blockchain, the technology behind cryptocurrencies such as Bitcoin, and VoIP together. However, combining them is quite an upgrade in secure communication.
You could think of blockchain as a shared, digital notebook which is stored on thousands of devices around the world. Every time data is added to this notebook, its encrypted and timestamped. It also gets linked to the previous entry, meaning it’s nearly impossible for it to be tampered with unnoticed.
Blockchain would be able to create verifiable digital identities so that when you make a VoIP call, the record is checked on the blockchain and you know straight away who you are talking to.
And even though VoIP calls are already encrypted, blockchain can create cryptographic keys required to lock and unlock conversations. It’s really just an added layer of end-to-end security that is much stronger.
So what do the experts think of VoIP and blockchain coming together to create a secure method of communicating?
Our Experts
- Deepak Shukla: CEO of Pearl Lemon Web.
- Luke Worley: Company Director of Tezlo.
- Gor Gasparyan: Co-Founder and CEO of Passionate Agency.
Deepak Shukla, CEO of Pearl Lemon Web
“It’s becoming clearer that VoIP and blockchain can actually help people feel safer when they’re talking online.
VoIP made calling smooth and cheap, though it still leans on systems that can be poked at if someone knows what they’re doing. Once you add blockchain into the mix, suddenly there’s a record of calls and identity checks that no one can quietly mess with. It really trims down the fake caller IDs and makes it way harder for someone to slip into a conversation they shouldn’t be in. Even the way messages move through the network feels more solid. This is because each step is logged clearly, so you can actually see what’s happening at every point.
For teams dealing with private chats or things that shouldn’t leak, this blend gives them a safer setup without slowing everything to a crawl. Users also get a bit more say over who can reach them and how their details are handled. I’m seeing more companies start to explore it as they look for tools that protect both sides of a call.”
Luke Worley, Company Director of Tezlo
“I’ve witnessed firsthand the evolution of communication technologies and the growing demand for secure, transparent solutions. One of the most exciting developments in this space is the convergence of Voice over Internet Protocol (VoIP) and blockchain. Together, they offer an innovative way to secure communication channels, providing both privacy and integrity in an increasingly digital world.
VoIP has long revolutionised the way we make voice calls, cutting costs and improving accessibility. However, as more of our conversations move to the digital realm, the risks to privacy and data security grow. This is where blockchain steps in. By decentralising communication and using cryptographic protocols, blockchain can ensure that calls are not only encrypted but also tamper-proof, providing an immutable record of each interaction.
At Tezlo, we specialise in integrating advanced blockchain technology with VoIP services, ensuring that our clients’ communications are secure and private. Our platform focuses on empowering businesses to have trust-based, encrypted conversations, whether for day-to-day operations or sensitive dealings. By combining the power of blockchain with VoIP, we offer a unique and highly secure communication solution that gives our clients peace of mind in an increasingly vulnerable digital world.”
Gor Gasparyan, Co-Founder and CEO of Passionate Agency
“My team believe that the merging of Voice over Internet Protocol (VoIP) and blockchain will be a necessary, structural change in digital communication for security, that will essentially impact and disrupt current centralised models of telecommunication.
The main advantage of combining blockchain and VoIP is the elimination of single points of failure, and the creation of a system of unchangeable and decentralised identity and key management. Traditional VoIP is open to interception, eavesdropping and denial of service attacks as central servers are used to handle user authentication/routing. By contrast, according to clients, the use of distributed ledgers to route call metadata, session initiation protocol addresses, and encryption keys makes the communication network highly resilient against common attacks.
Blockchain is tamper proof where each and every interaction is recorded and the identity and integrity is confirmed without depending on any one corporate authority. For example, having cryptographic signature secured using a distributed ledger helps to ensure that only authorised people can participate in a call, thus ensuring malicious man-in-the-middle attacks are not possible, which will greatly improve security for high-value enterprise communications and reduce the financial impact of intercepted data. This coming together does not simply mean adding of features but a complete re-architecture of trust.”
