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  • Book Overview & Buying Elastix Unified Communications Server Cookbook
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Elastix Unified Communications Server Cookbook

Elastix Unified Communications Server Cookbook

By : Gerardo Barajas Puente
5 (3)
Buy this Book
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Elastix Unified Communications Server Cookbook

Elastix Unified Communications Server Cookbook

5 (3)
By: Gerardo Barajas Puente
Buy this Book

Overview of this book

This book is aimed at those who want to learn how to set up an Elastix Unified Communications Server without losing ground on Unified Communications and Voice over IP.
Table of Contents (19 chapters)
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Preface
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Preface
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Introduction to the Elastix Unified Communications Server
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What this book covers
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What you need for this book
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Who this book is for
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Sections
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. Installing Elastix
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1. Installing Elastix
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Introduction to Elastix Unified Communications System
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Installing Elastix Unified Communications Server software
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Inserting the CD and booting
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Choosing the system's language
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Choosing the keyboard type
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Partitioning the hard disk
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Configuring the network interfaces
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Selecting a proper time zone
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Entering the password for the user root
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Logging into the system for the first time
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2. Basic PBX Configuration
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2. Basic PBX Configuration
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Introduction
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Setting up Elastix's dashboard
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Setting up the network parameters
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Managing users
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Configuring telephony cards
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Adding VoIP trunks
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Adding SIP extensions
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Creating IAX extensions
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Creating analog extensions
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Creating custom extensions
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Provisioning extensions in a simple way
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Outbound calls
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Inbound calls
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Creating an auto-attendant
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Controlling outbound calls using different prefixes
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Controlling outbound calls by using a trunk sequence
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Controlling outbound calls by using patterns
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Controlling outbound calls using PIN Sets
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Managing endpoints – Batch of extensions
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Managing extensions – Batch of endpoints
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Using the Endpoint Configurator
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3. Understanding Inbound Call Control
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3. Understanding Inbound Call Control
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Introduction
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Displaying voice announcements
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Blocking unwanted callers
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Routing calls based on caller ID
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Using MySQL to search for the caller's name
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Using HTTP to search for a user
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Setting up day/night controls
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Forwarding incoming calls to another extension or number
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Setting up a ring group
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Setting up a queue for ACD
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4. Knowing Internal PBX Options and Configurations
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4. Knowing Internal PBX Options and Configurations
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Introduction
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Creating conference rooms
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The Web Conference module
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Changing the language of a call flow
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Adding miscellaneous applications
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Adding miscellaneous destinations
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Music on hold
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Using Internet audio streams
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Using the SSH protocol
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Using PuTTY as an SSH client
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Accessing the FreePBX admin module
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Installing the Custom-Context module
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Using the Custom-Context module to restrict outbound calls
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Creating paging groups
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Creating intercom groups
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Parking calls
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Configuring extensions' voicemail
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The VmX Locater feature
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Configuring the Voicemail Blasting module
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Setting the Callback feature
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Configuring DISA
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5. Setting up the E-mail Service
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5. Setting up the E-mail Service
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Elastix's e-mail internals
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Sending an e-mail message from the command line
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Configuring the remote SMTP – setting up a Gmail relay account
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Setting the domain and configuring the relay option
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Adding e-mail accounts
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Controlling ad using the e-mail service with the webmail interface
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Filtering unwanted messages
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Creating e-mail lists
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Setting vacation messages
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6. Elastix Fax System
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6. Elastix Fax System
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Introduction
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Setting up the Elastix fax system
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Sending a fax from Elastix's WebGUI
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Viewing the sent and received faxes
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Installing a fax client
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Sending a fax using the HylaFAX client
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Receiving a fax
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Modifying the e-mail template
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7. Using the Call Center Module
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7. Using the Call Center Module
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Introduction
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Installing the Call Center module
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Configuring the Call Center module
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Creating a group of agents
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Creating and adding agents to a group
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Configuring a queue for standard agent login
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Queue for agent callback login
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Configuring queues for incoming calls
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Setting up the clients
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Configuring inbound campaigns
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Creating a script for outgoing campaigns
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Configuring agent break time
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Configuring an outgoing campaign
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Creating the call file specification
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Invoking a URL through the campaign
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Adding a number to the Do not call list
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Adding a list of numbers to the Do not call list
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Adding dynamic agents to the agent console
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Adding static agents/callback extensions
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Logging agents to the console dynamically
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The callback login
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Description of the agent console
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Call center reports
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8. Going Deeper into Unified Communications
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8. Going Deeper into Unified Communications
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Installing the Openfire instant messaging service
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Integrating Openfire with Asterisk IP-PBX
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Integrating VTiger CRM with Elastix
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Setting up video calls
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Dialing through MS Outlook
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Using Directories
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Configuring a speed dial list
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Enabling BLFs and hints
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9. Networking with Elastix
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9. Networking with Elastix
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Setting up remote extensions
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SIP trunking between Elastix systems
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Creating a VPN tunnel in our Elastix Unified Communications Server with OpenVPN
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Configuring channel banks
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Enabling multisites with Elastix
10
10. Knowing the State of Your Elastix System and Troubleshooting
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10. Knowing the State of Your Elastix System and Troubleshooting
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Using the Flash Operator Panel
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Looking at the Call Detailed Report
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Extension's summary
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Creating billing rates
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Destination Distribution
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SIP/IAX debugging
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Using Wireshark for debugging
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Using TCPDUMP for debugging
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Helpful Linux commands for debugging
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Debugging Asterisk
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11. Securing your Elastix System
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11. Securing your Elastix System
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Knowing the best practices when installing Elastix – Physical security
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Knowing the best practices when installing Elastix – Logical security
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Installing Fail2ban
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Using Elastix's embedded firewall
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Using the Security Advanced Settings menu to enable security features
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Recording and monitoring calls
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Recording MeetMe rooms
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Recording queues' calls
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Monitoring recordings
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Encrypting voice calls
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Generating system backups
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Restoring a backup from one server to another
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12. Implementing Advanced Dialplan Functions
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12. Implementing Advanced Dialplan Functions
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Creating an advanced IVR using Asterisk AGI and Asterisk's Dialplan
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Enabling a multiconference toggle button
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Creating your own Dialplan features
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Creating a phone poll using Elastix
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Enabling Remote Call Forward
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Installing the Custom-Context module
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Using the Custom-Context module
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Integrating Elastix with other PBXs
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Integrating GSM Gateways with Elastix
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Integrating TDM Gateways with Elastix
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A. Description and Use of the Most Well-known FreePBX Modules
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A. Description and Use of the Most Well-known FreePBX Modules
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Third-party modules
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B. Addon Market Module
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B. Addon Market Module
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C. Asterisk Essential Commands
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C. Asterisk Essential Commands
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D. Asterisk Gateway Interface Programming
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D. Asterisk Gateway Interface Programming
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E. Helpful Linux Commands
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E. Helpful Linux Commands
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Index
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Index

Using TCPDUMP for debugging

Another way to generate traces from within our Elastix server's command line is to use the tcpdump program. This program sets a specified network device in order to catch all the IP traffic that goes through it.

How to do it...

  1. The next example shows the command we need to execute in order to capture packets in the network device eth0.
    tcpdump -pi eth0 -s0 host XXX.XXX.XXX.XXX and udp port 5060 -vv -w file.cap
  2. The option -s0 captures packets of any size from host XXX.XXX.XXX.XXX traveling through the udp port 5060 and writes the output to the file.cap file. The specified host could be the IP address from an IP phone or from a VoIP provider. After making one or two calls, we exit this command by pressing Crtl + C. Then, we can transfer this file to our laptop or work station and open it, using Wireshark.
  3. In case we would like to use the TCPDUMP command over IAX, the way this command can be issued is as follows:
    tcpdump -pi eth0 -s0 host XXX.XXX.XXX.XXX and udp...

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