How Secure is TLS Encryption for Call Traffic?
Your voice channel is a critical component of your global contact center network. With fraud and cyberattacks escalating around the world, tightening your call traffic security posture using Transport Layer Security (TLS) may have crossed your mind.
If you’re using SIP protocols UDP and TCP by default for VoIP calling, consider the call traffic security benefits TLS can bring to your communications platform.
What is TLS?
TLS is the top and most powerful transport layer that protects your VoIP calls from hackers and eavesdropping attacks. Using TLS/SSL certificates for SIP voice configurations, you can easily protect your communications by encrypting data and securing channels between two endpoints, just as you would an HTTPS preceding your website domain.
Transport Layer Security (TLS) helps safeguard your SIP voice in the following ways:
→Encryption: Calls are transmitted over the internet using ciphertext (a random string of text) to shield data from unauthorized sources.
→Authentication: Process of authenticating parties exchanging calls and messaging.
→Verification: Process of verifying that call data wasn’t compromised and a secure SIP delivery took place.
What Does TLS Security Do for VoIP Calls?
TLS protocol provides traffic encryption and protection for VoIP calls. TLS is responsible for call signaling, but it’s Secure Real-Time Protocol (SRTP) that encrypts the audio stream as it moves through the internet. Having both enabled is the only way to prevent eavesdropping.
To use TLS, you’ll have to initiate a TLS handshake between your phone system and provider. Once the handshake is complete, your call traffic will benefit from…
1. Improved Security
TLS and SRTP adds protection to VoIP calls using cryptographic encryption, which makes it more difficult for fraudsters to eavesdrop on the conversation. Having this end-to-end security measure is vitally important for global businesses with strict compliance standards handling sensitive and personal customer information.
2. Better Performance
Using newer TLS protocols improves the performance and delivery speed of your secure VoIP call. TLS handshakes in versions 1.2 and 1.3 have fewer round trips to make between the client and server, which reduces call latency.
Secure Your VoIP Calls Using TLS Encryption
Reaching your global customers relies on fast and secure VoIP calls. Your business and customer expectations depend on it. TLS encryption provides robust protection from unlawful interference for all your SIP and VoIP calls.
The AVOXI Platform provides users with a secure connection point to TLS, allowing them to easily manage their voice services across their global network. With our fully resilient and cloud-based software plus 150+ country coverage, you’ll be at ease knowing your communications are well-protected wherever you do business.
Featured Resource
Telecom Security Toolkit
(Free Download)
A set of free resources for detecting and preventing security risks in your communication networks and technology.
