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

vii
Call-leg Merging Functionality 89
7 Working with Transactions
Introduction 91
Transaction Entities 92
Working with Handles 92
Transaction API 92
Transaction Parameters 93
Transaction Control 96
Proxy Transaction Control 98
Events 99
Transaction State Machine 101
Client General Transaction 102
Server General Transaction 104
Client INVITE Transaction 106
Server INVITE Transaction 109
Client CANCEL Transaction 113
Server CANCEL Transaction 114
Transaction Advanced States 116
Transaction Manager API 118
Transaction Manager Control 118
Transaction Manager Events 119
Using Transactions 120
Registering Application Callbacks 120
Exchanging Handles with the Application 123
Sending a Request 123
Using the Outbound Message Mechanism 124
Transaction Merging Support 126
8 Working with Register-Clients
Introduction 129
Working with Handles 130
Register-Client API 131
Register-Client Parameters 131