a stateless, challenge-based mechanism for authentication that is based on authentication in HTTP.
http://en.wikipedia.org/wiki/Digest_access_authentication
Since SIP does not have the concept of a canonical root URL, the notion of protection spaces is interpreted differently in SIP. The realm string alone defines the protection domain.
http://en.wikipedia.org/wiki/Digest_access_authentication
Since SIP does not have the concept of a canonical root URL, the notion of protection spaces is interpreted differently in SIP. The realm string alone defines the protection domain.
