Building Telephony Systems with OpenSER. A step-by-step guide to building a high performance Telephony System - Ebook - Flavio E. Goncalves, Bogdan Andrei Iancu (EUR), Flavio E Goncalves - Nowoczesna platforma edukacyjna

Kategorie

Szczegóły ebooka

Zaloguj się, jeśli jesteś zainteresowany treścią pozycji.

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

Flavio E. Goncalves, Bogdan Andrei Iancu (EUR), Flavio E Goncalves

Ebook

Building Telephony Systems with OpenSER
- Table of Contents
- Building Telephony Systems with OpenSER
- Credits
- About the Author
- About the Reviewers
- Preface
  - What This Book Covers
  - What You Need for This Book
  - Who This Book Is For
  - Conventions
  - Reader Feedback
    - Customer Support
    - Downloading the Example Code for the Book
    - Errata
    - Questions
- 1. Introduction to SIP
  - SIP Basics
    - SIP Proxy in the Context of a VOIP Provider
    - SIP Operation Theory
    - SIP Registration Process
  - Server Operating as a SIP Proxy
  - Server Operating as a SIP Redirect
  - Basic Messages
    - SIP Dialog Flow
  - SIP Transactions and Dialogs
    - The RTP Protocol
      - Codecs
      - DTMF-Relay
      - Real Time Control Protocol (RTCP)
    - Session Description Protocol (SDP)
  - The SIP Protocol and the OSI Model
  - The VoIP Provider "Big Picture"
    - SIP Proxy
    - User, Administration, and Provisioning Portal
    - PSTN Gateway
    - Media Server
    - Media Proxy or RTP Proxy for Nat Traversal
    - RADIUS Accounting
    - CDRTool Rating
    - Monitoring Tools
  - Where You Can Find More Information
  - Summary
- 2. The SIP Express Router
  - Where Are We?
  - What is the SIP Express Router?
  - What Software to Use, SER or OpenSER?
  - Usage Scenarios
  - OpenSER Architecture
    - Core and Modules
    - Sections of the File openser.cfg
    - Sessions, Dialogs, and Transactions
    - openser.cfg Message Processing
  - SIP ProxyExpected Behavior
  - Stateful Operation
  - Differences between Strict Routing and Loose Routing
  - Understanding SIP and RTP
    - Summary
- 3. OpenSER Installation
  - Hardware Requirements
  - Software Requirements
  - LabInstalling Linux for OpenSER
  - Downloading and Installing OpenSER v1.2
  - LabRunning OpenSER at the Linux Boot
  - OpenSER v1.2 Directory Structure
    - Configuration Files (etc/openser)
    - Modules (/lib/openser/modules)
    - Binaries (/sbin)
  - Log Files
  - Startup Options
  - Summary
- 4. OpenSER Standard Configuration
  - Where Are We?
  - Analyzing the Standard Configuration
  - Using the Standard Configuration
  - Routing Basics
    - Transactions and Dialogs
    - Initial and Sequential Requests
    - Routing in a Context of a Transaction
    - Routing in the Context of a Dialog
    - LabTracking a Complete Dialog
    - LabRunning Stateless
    - LabDisabling record-route
  - Summary
- 5. Adding Authentication with MySQL
  - Where Are We?
  - The AUTH_DB Module
  - The REGISTER Authentication Sequence
    - Register Sequence (Packets Captured by ngrep)
    - Register Sequence Code Snippet
    - The INVITE Authentication Sequence
      - INVITE Sequence Packet Capture
    - Digest Authentication
      - WWW-Authenticate Response Header
      - The Authorization Request Header
      - QOPQuality of Protection
    - Installing MySQL Support
    - openser.cfg File Analysis
  - The Openserctl Shell Script
    - Openserctl Resource File
      - Openserctlrc File
    - Using OpenSER with Authentication
    - Enhancing the Script
      - Managing Multiple Domains
      - Alternative Routes
        
        Register Requests (route[2])
        
        Non-Register Requests (route[3])
        
        Managing Calls Coming from Our Domain
        
        Inbound-to-Inboundroute[10]
        
        Inbound-to-Outboundroute[11]
        
        Outbound-to-Inboundroute[12]
        
        Outbound-to-Outboundroute[13]
  - The Functions check_to() and check_from()
  - Using Aliases
  - Handling CANCEL requests and retransmissions
  - Full Script with All the Resources Above
  - LabEnhancing the Security
  - LabUsing Aliases
  - Summary
- 6. Building the User Portal with SerMyAdmin
  - SerMyAdmin
    - LabInstalling SerMyAdmin
  - Basic Tasks
    - Registering a New User
    - Approving a New User
    - User Management
    - Domain Management
    - Interface Customization
  - Summary
- 7. Connectivity to the PSTN
  - Where Are We?
    - Requests Sent to the Gateway
    - Requests Coming From the Gateway
    - openser.cfg Inspection
  - LabUsing Asterisk as a PSTN Gateway
    - Asterisk Gateway (sip.conf)
    - Cisco 2601 Gateway
  - Using LCR (Least Cost Routes)
    - The LCR Module
      - Configuration Diagram
    - VoIP Provider Dial Plan
    - The LCR Table
    - The Gateways Table
      - The Gateway Groups Table
    - Adding, Removing, and Showing LCR and Gateways
    - Openserctl LCR-Related Commands.
      - Notes:
      - Examples:
    - LabUsing the LCR Feature
      - lcr Gateway Groups
      - lcr Gateways
      - lcr Routes
  - Securing re-INVITES
  - Blacklists and "473/Filtered Destination" messages
  - Summary
- 8. Call Forward and Voice Mail
  - Call Forwarding
    - Pseudo-Variables
    - AVP (Attribute-Value Pair) Overview
      - AVPOPS Module Loading and Parameters
    - Implementing Blind Call Forwarding
      - LabImplementing Blind Call Forwarding
  - Implementing Call Forward on Busy or nanswered
  - Inspecting the Configuration File
  - LabTesting the Call Forward Feature
    - Summary
- 9. SIP NAT Traversal
  - NAT Types
    - Full Cone
    - Restricted Cone
    - Port Restricted Cone
    - Symmetric
    - NAT Firewall Table
  - Solving the SIP NAT Traversal Challenge
    - Implementing a Far-End NAT Solution
      - RFC3581 and the force_rport() Function
      - Solving the Traversal of RTP Packets
  - Handling REGISTER Requests behind NAT
    - Determining if the Client is behind NAT
  - Handling INVITE Messages behind NAT
  - Handling the Responses
  - MediaProxy Installation and Configuration
    - Installing MediaProxy
  - openser.cfg Analysis
    - Modules Loading
    - Modules Parameters
    - Register Message Processing
    - Invite Message Processing
    - BYE and CANCEL Message Processing
    - RE-INVITE Message Handling
    - Reply Message Handling
    - Routing Script
  - Invite Diagram
    - Packet Sequence
  - Lab Using MediaProxy for NAT Traversal
    - Implementing a Near-End NAT Solution
      - Why STUN Does Not Work with Symmetric NAT Devices
      - Comparing STUN with TURN (Media Relay Server)
      - ALGApplication Layer Gateways
      - ICE (Interactive Connection Establishment)
    - Summary
- 10. OpenSER Accounting and Billing
  - Objectives
  - Where Are We?
    - VoIP Provider Architecture
    - Accounting Configuration
    - LABAccounting using MySQL
    - openser.cfg Analysis
    - Accounting using RADIUS
  - Installation of FreeRADIUS and CDRTool
    - Packages and Dependencies
    - Create and Configure the Database for the Radius server
    - Configuration of the FreeRADIUS Server
    - Configure the RADIUS Client (radiusclient-ng)
    - Configure OpenSER
    - Test the Configuration after Making a Call
  - Using CDRTool for Rating
    - LABCDRTool Installation
    - LABUsing CDRTool
  - CDRTool Architecture
  - How CDRTool Rates a Call
    - LabCreating and Applying a Rating Plan
  - Summary
- 11. Troubleshooting Tools
  - Objectives
    - Where Are We?
  - Built-in Tools
  - Packet Capture and Trace Tools
    - TShark, Wireshark
    - SipTrace
    - Stress Testing Tools
      - Sipsak
      - SIPp
      - Installing SIPp
      - Stress TestThe SIP Signaling
      - Stress TestThe RTP Signaling
      - Testing MediaProxy
    - Monitoring Tools
  - Summary
- 12. After Words
  - What's New in Version 1.2.3
    - Cancel Handling
    - Blacklist is Disabled by Default
    - Method Filtering
    - Alias_DB
    - Branch_route
  - Migration from 1.2.2 to 1.2.3 and 1.3.1
  - Migrating the Script from Chapter 10 to openser 1.3.1
  - RTPProxy
    - LabInstalling RTPProxy
  - Areas for Further Investigation
    - Carrier Route
    - Dialog
    - SIP Session Timers
  - SIP Peering
  - TLS Transport Layer Security
  - Development
    - PERL
    - WeSIP
  - Common Mistakes
    - Daemon Does Not Start
    - Client Unable to Register
    - Sending a Call to a Provider with Authentication
    - Typos in the Configuration File
    - The Last Tip
  - Forum and Training
  - Summary
- Index

Tytuł: Building Telephony Systems with OpenSER. A step-by-step guide to building a high performance Telephony System
Autor: Flavio E. Goncalves, Bogdan Andrei Iancu (EUR), Flavio E Goncalves
Tytuł oryginału: Building Telephony Systems with OpenSER. A step-by-step guide to building a high performance Telephony System
ISBN: 9781847193742, 9781847193742
Data wydania: 2008-04-25
Format: Ebook
Identyfikator pozycji: e_3cnj
Wydawca: Packt Publishing

wybór języka

Kategorie

Szczegóły ebooka