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

SIP Stack 15
2
SIP STACK
INTRODUCTION This chapter describes the SIP Stack's architecture, the relationship between
Stack objects, APIs, standards and different kinds of support, enhanced features
and add-on module in SIP.
The HP implementation of SIP provides the following features:
 Enable media over IP communication
 A building block to develop wide range of applications from
cellular phones to high-end servers
 Develop a complete solution for both native and embedded
platforms, that implement call-level, transaction-level and
message-level functionality
TOOLKIT
COMPONENTS
The SIP Toolkit comprises the following two components, as illustrated in
Figure 2-1:
 SIP Stack
 OS Abstraction layer (Common Core)