SIP Authentication and Security Master SIP authentication mechanisms (HTTP Digest), TLS encryption, SIPS, and security best practices for building secure VoIP applications. HTTP Digest Authentication Challenge-Response Flow Digest Authentication Implementation Complete Authentication Example Server-Side Authentication Registration Server with Authentication TLS/SIPS Implementation Secure SIP (SIPS) Setup SRTP and Media Security SRTP Key Exchange in SDP SRTP Implementation Security Best Practices Input Validation and Sanitization Anti-Spoofing Measures When to Use This Skill Use sip-authentica…