By Numan Khan

Transcription

1 Online Asterisk* Training Classes By Numan Khan

2 In this Class 01 Online Asterisk Training Understand the term Asterisk Introduction History of Asterisk Asterisk Usages & Capabilities Required Hardware Required Software Training Contents

3 Asterisk a buzz word Asterisk (*) a symbol wildcard means anything. Digium Definition of Asterisk Asterisk is an open source framework for building communications applications. Asterisk turns an ordinary computer into a communications server. Asterisk powers IP PBX systems, VoIP gateways, conference servers and more. It is used by small businesses, large businesses, call centers, carriers and governments worldwide. Asterisk is free and open source. Asterisk is sponsored by Digium Source

4 Introduction History of Asterisk Asterisk is created by Mark Spencer in 1999 Digium is the sponsor of Asterisk Digium provides the latest version of Asterisk Patches & Security Updates Mark Spencer

5 Asterisk Usages & Capabilities IP-PBX IVR, Extensions, Fax, Voic , Call Forwarding, MOH, Call Waiting, Voic to , Fax to PDF blah blah Centralized IP-PBX Remote Extensions for office employees/employees at home/remote sites VoIP Gateways Softswitch for telco operator reducing long distance calls cost. PSTN -> VoIP Gateways -> PSTN Call Center/Contact Center Integration with CRM (Customer Relationship Management) Call Back to customers Caller ID base POP up showing Customers Details Call Recording AMI Asterisk Manager Interface 3 rd Party Software Integration AGI Asterisk Gateway Interface Asterisk API for scripting language (PHP, PERL etc).

6 Required Hardware for Asterisk Choosing Computer Server for Asterisk. Any computer CPU Motherboard that is compatible with LINUX KERNEL (Distro - Red Hat, CentOS, Debian, Ubuntu etc) can be used for asterisk server. The CPU Speed, RAM, HDD all these factors depends on call volume especially number of concurrent calls means at the same time how many calls your server can receive. This concurrent calls volume can be found by analyzing the trunk lines of your home/office. Some rough estimate is 30 MHz clock speed is required per call to process. Virtual Machine may also be used for pure VoIP system, if don t need PSTN connectivity.

7 Required Software for Asterisk The OS Operating System for Asterisk is Linux. Asterisk runs as daemon process (background) on Linux Machine. Asterisk can be install on any flavor of Linux depends on your comfort level of using it. CentOS (Linux Distro) is commonly used for Asterisk at learning & production level. In this online Asterisk Training classes we will also use CentOS as our Operating System for Asterisk. Take some time to familiarized yourselves with CentOS commands usage.

8 Online Asterisk Training Contents List In this series of classes Downloading & Installing Asterisk Asterisk anatomy Analog, Digital & IP Connectivity Asterisk Basics Configuration Files Dialplan Basics The heart of Asterisk Asterisk Applications Interactive Dialplan Asterisk Features Call Queues in Asterisk Database Integration with Asterisk Fax with Asterisk

9 Continue Asterisk Training Classes Contents List AGI concept & scripting Conculsion

10 Resources Asterisk : The Definitive Guide Copyright 2011 Leif Madsen, Jim Van Meggelen, and Russell Bryant URL :

11 For Feedback & Your Questions