In this chapter you have learned what the protocol SIP is and its functionality. You had the opportunity to get to know the SIP components such as the SIP proxy, SIP Registrar, User Agent Client, User Agent Server, and Gateway PSTN. You saw SIP architecture, its main messages and processes. Some places to find further information were listed too.
Building Telephony Systems with OpenSER
Building Telephony Systems with OpenSER
Overview of this book
Table of Contents (18 chapters)
Building Telephony Systems with OpenSER
Credits
About the Author
About the Reviewers
Preface
Free Chapter
Introduction to SIP
The SIP Express Router
OpenSER Installation
OpenSER Standard Configuration
Adding Authentication with MySQL
Building the User Portal with SerMyAdmin
Connectivity to the PSTN
Call Forward and Voice Mail
SIP NAT Traversal
OpenSER Accounting and Billing
Troubleshooting Tools
After Words
Index
Customer Reviews