Elastix Unified Communications Server Cookbook

Book Image

Elastix Unified Communications Server Cookbook

Book Image

Elastix Unified Communications Server Cookbook

Overview of this book

Elastix Unified Communications Server Cookbook

Elastix Unified Communications Server Cookbook

Credits

About the Author

About the Author

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Free Chapter

Installing Elastix

Installing Elastix

Introduction to Elastix Unified Communications System

Installing Elastix Unified Communications Server software

Inserting the CD and booting

Choosing the system's language

Choosing the keyboard type

Partitioning the hard disk

Configuring the network interfaces

Selecting a proper time zone

Entering the password for the user root

Logging into the system for the first time

Basic PBX Configuration

Basic PBX Configuration

Setting up Elastix's dashboard

Setting up the network parameters

Configuring telephony cards

Adding VoIP trunks

Adding SIP extensions

Creating IAX extensions

Creating analog extensions

Creating custom extensions

Provisioning extensions in a simple way

Creating an auto-attendant

Controlling outbound calls using different prefixes

Controlling outbound calls by using a trunk sequence

Controlling outbound calls by using patterns

Controlling outbound calls using PIN Sets

Managing endpoints – Batch of extensions

Managing extensions – Batch of endpoints

Using the Endpoint Configurator

Understanding Inbound Call Control

Understanding Inbound Call Control

Displaying voice announcements

Blocking unwanted callers

Routing calls based on caller ID

Using MySQL to search for the caller's name

Using HTTP to search for a user

Setting up day/night controls

Forwarding incoming calls to another extension or number

Setting up a ring group

Setting up a queue for ACD

Knowing Internal PBX Options and Configurations

Knowing Internal PBX Options and Configurations

Creating conference rooms

The Web Conference module

Changing the language of a call flow

Adding miscellaneous applications

Adding miscellaneous destinations

Using Internet audio streams

Using the SSH protocol

Using PuTTY as an SSH client

Accessing the FreePBX admin module

Installing the Custom-Context module

Using the Custom-Context module to restrict outbound calls

Creating paging groups

Creating intercom groups

Configuring extensions' voicemail

The VmX Locater feature

Configuring the Voicemail Blasting module

Setting the Callback feature

Configuring DISA

Setting up the E-mail Service

Setting up the E-mail Service

Elastix's e-mail internals

Sending an e-mail message from the command line

Configuring the remote SMTP – setting up a Gmail relay account

Setting the domain and configuring the relay option

Adding e-mail accounts

Controlling ad using the e-mail service with the webmail interface

Filtering unwanted messages

Creating e-mail lists

Setting vacation messages

Elastix Fax System

Elastix Fax System

Setting up the Elastix fax system

Sending a fax from Elastix's WebGUI

Viewing the sent and received faxes

Installing a fax client

Sending a fax using the HylaFAX client

Receiving a fax

Modifying the e-mail template

Using the Call Center Module

Using the Call Center Module

Installing the Call Center module

Configuring the Call Center module

Creating a group of agents

Creating and adding agents to a group

Configuring a queue for standard agent login

Queue for agent callback login

Configuring queues for incoming calls

Setting up the clients

Configuring inbound campaigns

Creating a script for outgoing campaigns

Configuring agent break time

Configuring an outgoing campaign

Creating the call file specification

Invoking a URL through the campaign

Adding a number to the Do not call list

Adding a list of numbers to the Do not call list

Adding dynamic agents to the agent console

Adding static agents/callback extensions

Logging agents to the console dynamically

The callback login

Description of the agent console

Call center reports

Going Deeper into Unified Communications

Going Deeper into Unified Communications

Installing the Openfire instant messaging service

Integrating Openfire with Asterisk IP-PBX

Integrating VTiger CRM with Elastix

Setting up video calls

Dialing through MS Outlook

Using Directories

Configuring a speed dial list

Enabling BLFs and hints

Networking with Elastix

Networking with Elastix

Setting up remote extensions

SIP trunking between Elastix systems

Creating a VPN tunnel in our Elastix Unified Communications Server with OpenVPN

Configuring channel banks

Enabling multisites with Elastix

Knowing the State of Your Elastix System and Troubleshooting

Knowing the State of Your Elastix System and Troubleshooting

Using the Flash Operator Panel

Looking at the Call Detailed Report

Extension's summary

Creating billing rates

Destination Distribution

SIP/IAX debugging

Using Wireshark for debugging

Using TCPDUMP for debugging

Helpful Linux commands for debugging

Debugging Asterisk

Securing your Elastix System

Securing your Elastix System

Knowing the best practices when installing Elastix – Physical security

Knowing the best practices when installing Elastix – Logical security

Installing Fail2ban

Using Elastix's embedded firewall

Using the Security Advanced Settings menu to enable security features

Recording and monitoring calls

Recording MeetMe rooms

Recording queues' calls

Monitoring recordings

Encrypting voice calls

Generating system backups

Restoring a backup from one server to another

Implementing Advanced Dialplan Functions

Implementing Advanced Dialplan Functions

Creating an advanced IVR using Asterisk AGI and Asterisk's Dialplan

Enabling a multiconference toggle button

Creating your own Dialplan features

Creating a phone poll using Elastix

Enabling Remote Call Forward

Installing the Custom-Context module

Using the Custom-Context module

Integrating Elastix with other PBXs

Integrating GSM Gateways with Elastix

Integrating TDM Gateways with Elastix

Description and Use of the Most Well-known FreePBX Modules

Description and Use of the Most Well-known FreePBX Modules

Third-party modules

Addon Market Module

Addon Market Module

Asterisk Essential Commands

Asterisk Essential Commands

Asterisk Gateway Interface Programming

Asterisk Gateway Interface Programming

Helpful Linux Commands

Helpful Linux Commands

Index

Customer Reviews

5 star

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4 star

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3 star

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2 star

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1 star

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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...

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
```
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.
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 port...
```