Asterisk: The Future of Telephony
Date: 28 February 2011 | Posted by: ishtiyaq
Asterisk is an open source Personal Branch Exchange (PBX) system.
Like any PBX, it allows a number of attached telephones to make calls to one another, and to connect to other telephone services including the public switched telephone network (PSTN). A PBX also allows things like automated attendant, to creates messages that say “Press 1 to talk to a operator” and so on..
The O’Reilly book, Asterisk: The Future of Telephony will walk you through the process of configuring your first Asterisk system. From the book introduction page:
Many organizations are drawn to Internet telephony’s promise of cost savings, and its ability to move data, images, and voice traffic over the same connection. Asterisk, an open source system than runs on Linux (and *BSD), offers the best option. This guide covers installing, configuring, and integrating Asterisk with existing phone systems, without the need for additional hardware.
Note: Mirror not needed, it's 100% working post :)
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