- Building Telephony Systems with OpenSER
- Flavio E. Goncalves
- 195字
- 2021-07-02 11:38:32
Chapter 2. The SIP Express Router
We discussed in the last chapter the big picture of a VoIP provider. Usually a VoIP provider is composed of several components. These components can reside in the same machine or be spread over several machines depending on your dimensioning. One of these components is the SIP proxy server, in our case the server running the OpenSER software. As the name implies, what best describes the SER is a SIP Router. It is able to manipulate the SIP headers and route packets at extremely high speeds. Third-party modules give SER extreme flexibility to play roles for which it was not originally intended, such as NAT traversal, IMS, Load Balancing, and other functionalities. In this chapter we will show you the possibilities and the architecture of the SIP Express Router.
By the end of this chapter you will be able to:
- Explain what the SIP Express Router (SER) is
- Choose between two available open-source projects, SER and OpenSER
- Describe their usage scenarios
- Distinguish between the different sections of the
openser.cfgfile - Describe the processing of SIP messages
- Distinguish between loose and strict routing
- Distinguish between SIP and SDP
- JBoss AS 5 Development
- Irrlicht 1.7 Realtime 3D Engine Beginner's Guide
- 中文版Maya 2012實用教程（第2版）
- Premiere Pro 2022從新手到高手
- SOLIDWORKS 2021中文版基礎入門一本通
- Cinema 4D電商美工與視覺設計案例教程（培訓教材版）
- 攝影輕松入門：Photoshop后期處理
- Excel數據管理：不加班的秘密
- 中文版Photoshop CC平面設計實用教程
- CMS Design Using PHP and jQuery
- ASP.NET 3.5 Social Networking
- OpenCart 1.4 Template Design Cookbook
- 24小時玩賺剪映
- 圖像處理系統
- AutoCAD快速自學寶典（2019中文版）