Voice Security Improvements

At Vonage, we're constantly improving our APIs, with security being one of the essential aspects. The company has delivered recent significant improvements to its Secure Real-time Transfer Protocol (SRTP), Signed Callbacks, and HTTPS Caching features. SRTP allows for secure transmission of real-time media, such as voice in a Voice over IP (VoIP) call, while Signed Callbacks enable checking of JWT signatures to ensure authenticity. The new HTTPS caching feature supports both HTTP and HTTPS URLs, improving performance without compromising security. These updates aim to provide secure interfaces for all Vonage APIs and products, ensuring users' private data remains private.