# Functions
NewSipStack creates new instance of SipStack.
# Constants
DefaultUserAgent .
# Structs
ServerAuthManager .
SipStack a golang SIP Stack.
SipStackConfig describes available options.
# Type aliases
RequestHandler is a callback that will be called on the incoming request of the certain method tx argument can be nil for 2xx ACK request.
RequiresChallengeHandler will check if each request requires 401/407 authentication.