LQ-SIP: Does the LQ support Digest authentication protocol
LQ SIP is following RFC3261 and Digest Authentication is mandatory.
The SIP protocol [RFC3261] uses the same mechanism used by the HTTP protocol for authenticating users, which is a simple challenge- response authentication mechanism that allows a server to challenge a client request and allows a client to provide authentication information in response to that challenge.
The SIP protocol uses the Digest Authentication scheme that is used with the HTTP authentication mechanism, which by default uses MD5 as the default algorithm.