Session Initiation Protocol (SIP) is not inherently secure. It is essentially a communications-specific version of the HTTP protocol that makes up the basis for web data. Just as HTTP uses SSL (Secure Sockets Layer) and security certificates to encrypt...
Filed under: VoIP, VoIP security, SIP, encryption, TLS, S/MIME, MD5, IPSec, SIP over TLS, SIPS, URI