Breach of privacy comes up as one of the most common challenges in personal communication nowadays. One of the main issues that come up is: are VoIP calls encrypted? To be short the answer is yes, but the encryption thickness depends on the VoIP provider and the level of security provisions they provide.
What Does VoIP Mean?
VoIP refers to Voice over The Internet systems, which is one of the latest communication methods taking the lead around the globe. VoIP can be used for messaging, voice calling, video calling and even for conferences, so long as there is a strong and stable internet connection.
What is VoIP Encryption?
VoIP encryption means transforming a person’s voice during a call into a coded format for protection purposes. VoIP is beneficial in this way because once a call is encrypted, it is extremely difficult for security breaches to occur. Encryption reduces the risk of unauthorised access to your calls and turns your calls into unrecognisable gibberish while being transmitted.
How Are VoIP Calls Encrypted?
VoIP calls can be encrypted using several encryption protocols, each designed to protect different aspects of the communication process. Here are the most common protocols used in VoIP encryption:
Secure Real-Time Transport Protocol (SRTP)
SRTP is the most widely used protocol to encrypt the voice data transmitted during a call. It ensures that the audio stream is protected from interception, eavesdropping, and tampering by encrypting the data packets sent across the internet.
Transport Layer Security (TLS)
TLS is a protocol that encrypts the signalling data—such as call initiation, user information, and termination—used to set up and control VoIP calls. TLS ensures that sensitive information like phone numbers and usernames is secure while being transmitted between users and servers.
Virtual Private Networks (VPNs)
As an additional security measure, some companies implement the use of VPNs to mask all data including any VoIP calls. VPN is a technology that provides a secure connection actively extending over the internet, and it may very well be used in addition to any ordinary VoIP encryption.
Why Is VoIP Call Encryption Important?
Encrypting VoIP calls is necessary in order to ensure the privacy of individuals and always keep their personal information away from attackers. Failure to use encryption makes VoIP calls susceptible to interception and allows hackers access to confidential business meetings, private conversations, and other very important information. Here is a short summary of the principal reasons why encryption is required for VoIP security:
Eavesdropping Prevention
VoIP calls without any encryption are subjected to VoIP packet eavesdropping whereby cybercriminals use packet sniffers to intercept and store VoIP packets that are not encrypted. Encryption protects the information contained within the VoIP call, thus ensuring only the intended people are able to eavesdrop on the conversations.
Uphold Client Confidentiality Obligation
Encryption allows for the protection of sensitive information to be kept private. The use of encrypted VoIP services allows companies to conform to EU directives such as GDPR and HIPAA.
Avoid Negative Publicity
Interception of calls or even data breaches is damaging to companies as it affects their image of the public. With VoIP encryption, businesses can avoid embarrassment owing to security threats.
