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

Working with SIP Messages 147
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WORKING WITH SIP MESSAGES
INTRODUCTION The SIP Stack provides a flexible API for working with SIP messages and
message parts, such as headers and addresses. The SIP Stack uses
object-oriented methodology and treats messages and message parts as objects.
The Message API provides functions for working with the following objects:
 Message
 Address
 Body
 Body Part
Header objects:
 Allow header
 Allow-Events header
 Authentication header (Proxy-Authenticate and WWW-
Authenticate headers)
 Authorization header (Authorization and Proxy-Authorization
headers)
 Contact header
 Content Disposition header
 Content Type header
 CSeq header
 Date header
 Event header
 Expires header