官术网_书友最值得收藏!

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.cfg file
  • Describe the processing of SIP messages
  • Distinguish between loose and strict routing
  • Distinguish between SIP and SDP
主站蜘蛛池模板: 盱眙县| 同德县| 清原| 固安县| 岳西县| 澎湖县| 丰宁| 平定县| 莱芜市| 涞水县| 房产| 灌云县| 保康县| 忻城县| 渝中区| 策勒县| 成都市| 祥云县| 天门市| 宁河县| 云林县| 卫辉市| 九江县| 林甸县| 安达市| 资兴市| 射洪县| 安化县| 兴国县| 剑川县| 略阳县| 朝阳市| 通榆县| 兰考县| 邢台市| 宁河县| 义马市| 丹棱县| 卢氏县| 乌什县| 玉山县|