HP-UX C SIP Stack Programmer's Guide (Novembery 2007)

4 HP-UX C SIP Stack Programmer’s Guide
Messages
 4xx = Client Error—the request contains bad syntax or cannot
be fulfilled at this server.
 5xx = Server Error—the server failed to fulfill an apparently
valid request.
 6xx = Global Failure—the request cannot be fulfilled at any
server.
Table 1-2 Response Codes
Number Meaning
100 Trying
180 Ringing
200 OK
300 Multiple choices
30 Moved permanently
302 Moved temporarily
400 Bad request
401 Unauthorized
403 Forbidden
408 Request time-out
480 Temporarily unavailable
481 Call/Transaction does not exist
482 Loop detected
500 Server internal error
600 Busy everywhere