Book Image

FreeSWITCH 1.2 - Second Edition

Book Image

FreeSWITCH 1.2 - Second Edition

Overview of this book

FreeSWITCH is an open source telephony platform designed to facilitate the creation of voice and chat-driven products, scaling from a soft-phone to a PBX and even up to an enterprise-class soft-switch. It is always exciting to design and build your own telephony system to suit your needs, but the task is time-consuming and involves a lot of technical skill."FreeSWITCH 1.2" comes to your rescue to help you set up a telephony system quickly and securely using FreeSWITCH. It is rich with practical examples and will give you all of the information and skills needed to implement your own PBX system.You will start with a detailed description of the FreeSWITCH system architecture. Thereafter you will receive step-by-step instructions on how to set up basic and advanced features for your telephony platform.The book begins by introducing the architecture and workings of FreeSWITCH before detailing how to plan a telephone system and then moves on to the installation, configuration, and management of a feature-packed PBX. You will learn about maintaining a user directory, XML dial plan, and advanced dial plan concepts, call routing, and the extremely powerful Event Socket. You will finally learn about the online community and history of FreeSWITCH."FreeSWITCH 1.2" is an indispensable tool for novice and expert alike.
Table of Contents (24 chapters)
FreeSWITCH 1.2
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Advanced routing


IVRs are not just limited to menus. While you most likely want to program complex IVRs using a programming language, it's possible to use the built-in XML IVRs in other ways, too.

For example, let's say you wanted to require callers to enter a PIN number in order to reach a special answering service. You might create an IVR that contains the PIN number as the only available entry, and replace the sound files with a greeting, requesting the PIN number and the invalid entry sound with an invalid password message. The menu would be simple enough, as follows:

<menu name="enter_pin"greet-long="phrase:enter_your_pin"invalid-sound="phrase:invalid_pin"exit-sound="phrase:invalid_pin"timeout="15000"max-failures="3"max-timeouts="3">
  <entry digits="1828" action="menu-exec-app" param="transfer after_hours XML default"/>
</menu>

This would effectively create a prompt, requesting a password of 1828 as previously stated, and disconnect the caller after three failed attempts...