Download e-book for iPad: Building Telephony Systems with OpenSER: A step-by-step by Flavio E. Goncalves

By Flavio E. Goncalves

ISBN-10: 1847193730

ISBN-13: 9781847193735

This publication teaches easy methods to enhance a quick and versatile consultation Initiation Protocol (SIP) server utilizing OpenSER and indicates how OpenSER can be utilized to enforce positive aspects no longer on hand in Asterisk PBX. This e-book is for readers who are looking to know the way to construct a SIP supplier from scratch utilizing OpenSER. Telephony and Linux adventure might be important yet isn't really crucial. Readers needn't have earlier wisdom of OpenSER.

Show description

Read or Download Building Telephony Systems with OpenSER: A step-by-step guide to building a high performance Telephony System PDF

Best web design books

Rupert Howell, Jonathon Wong's Apache OFBiz Development: The Beginner's Tutorial PDF

I didn't start with ofbiz improvement some time past utilizing the web documentation and different education fabric. This publication controlled to get me up and operating very quickly. there has been much more that i wanted to benefit after analyzing this booklet, yet this ebook acquired me began. I usually use this ebook as a reference.

Download e-book for kindle: Using Joomla: Building Powerful and Efficient Web Sites by Ron Severdia

Why use Joomla? simply because with Joomla you do not need to have any technical services or website design adventure to create powerful web content and internet apps. no matter if you are growing your first site or development a multi-function web site for a consumer, this publication presents user-friendly, hands-on guideline that makes it effortless to benefit this open resource web pages administration method.

Download PDF by Barrie Dempster, David Gomillion, David Merel: Asterisk 1.6

The booklet bargains readers either an in depth description in addition to step-by-step directions on deploying software program strategies in addition to Asterisk configurations. Screenshots are supplied in sections to offer a visible viewpoint of the directions. For Asterisk configurations real pattern code is indexed within the ebook that are without delay inserted into your Asterisk resolution.

HTML5. The Missing Manual - download pdf or read online

HTML5 is greater than a markup language—it’s a suite of a number of self sufficient net criteria. thankfully, this multiplied advisor covers every thing you wish in a single handy position. With step by step tutorials and real-world examples, HTML5: The lacking guide exhibits you the way to construct net apps that come with video instruments, dynamic pics, geolocation, offline beneficial properties, and responsive layouts for cellular units.

Additional info for Building Telephony Systems with OpenSER: A step-by-step guide to building a high performance Telephony System

Sample text

Request for current contact list—In this case, the user agent will send the CONTACT header field empty, indicating the user wishes to query the server for the current contact list. In the 200 OK message, the SIP server will send the current contact list in the CONTACT header field. 4. Cancellation of a registration—The user agent now sends the message with an EXPIRES header field of 0 and a CONTACT HEADER field configured as '*' to apply to all existing contacts. 5. Unsuccessful Registration—The UAC sends a Register Request and receives a "401 Unauthorized" message, in exactly the same way as the successful registration.

PSTN Gateway To communicate to the public switched telephone network, a PSTN gateway is required. Usually this gateway will interface to the PSTN using E1 or T1 trunks. The most common products in this arena are gateways from Cisco, AudioCodes, and Quintum. Asterisk is gaining market in this area, because of its price per port cost, sometimes 75% less than the competitors. To evaluate a good gateway, check the support of SIP extensions such as RFC3515 (REFER), RFC3891 (Replaces), and RFC3892 (Referred by).

The SIP Express Router is an open-source SIP proxy server compliant to the IETF RFC3261 SIP protocol. It is targeted at large volume applications. [ 30 ] Chapter 2 With its small footprint the SER is extremely fast to forward requests and can handle thousands of users in a single server. It is being used by large voice-over-IP providers and for embedded IP PBXes with very low processing power. Their interoperability with several sorts of equipment makes them a de facto standard. What Software to Use, SER or OpenSER?

Download PDF sample

Building Telephony Systems with OpenSER: A step-by-step guide to building a high performance Telephony System by Flavio E. Goncalves

by Christopher

Rated 4.36 of 5 – based on 9 votes