Preface
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What this book covers
Chapter 1, Installing Elastix, covers basic recipes for installing Elastix.
Chapter 2, Basic PBX Conguration, demonstrates the processes for creating extensions,
conguring telephony cards, setting an IVR, and controlling incoming and outgoing calls in a
simple way.
Chapter 3, Understanding Inbound Call Control, explains how to get deeper into the IP-PBX
features to give the installed solution.
Chapter 4, Knowing Internal PBX Options and Congurations, contains recipes used to
congure the language of the recordings (or phrases) the Elastix Unied Communications
Server displays, create conference bridges, restrict calls, add miscellaneous destinations
and applications, and so on.
Chapter 5, Setting up the E-mail Service, assists you to set up the Elastix Unied
Communications Server as an e-mail server.
Chapter 6, Elastix Fax System, explains that although the use of faxes is decreasing, there
are situations (especially in communication with banks or government ofces) in which it is
necessary to send and receive faxes. This chapter is dedicated to this feature.
Chapter 7, Using the Call Center Module, shows one of Palo Santo's best contributions to the
world of open source telephony, which is an open source call center module. In this chapter,
you will be guided through the process of installing and conguring this feature.
Chapter 8, Going Deeper into Unied Communications, tells you how you can learn more
about Unied Communications. This chapter includes recipes for conguring instant
messaging, integration with a CRM and Outlook, video calls, and so on.
Chapter 9, Networking with Elastix, proves that one of Elastix's strengths is connecting remote
sites and extensions by integrating the dialplan.
Chapter 10, Knowing the State of Your Elastix System and Troubleshooting, tells us when
debugging and troubleshooting any situation in our system is necessary. The topics of billing
and reporting are also discussed.
Chapter 11, Securing Your Elastix System, shows us that any IP device the Elastix Unied
Communications Server can be targeted to be attacked in many ways, from denial-of-service
attacks to telephone frauds, and when creating a backup of our solution, this chapter
is helpful.
Chapter 12, Implementing Advanced Dialplan Functions, shows advanced features that are
not included by default in our Elastix system and are very attractive to some enterprise levels,
such as an IVR that retrieves information from a database.