Download AsteriskNOW by Nir Simionovich PDF

By Nir Simionovich

AsteriskNOW is an open-source software program equipment from Digium: a personalized Linux distribution, along with Asterisk (the major open-source telephony engine and gear kit), the AsteriskGUI, and all of the different software program wanted for an Asterisk telephony method. AsteriskNOW is simple to put in. It helps you to install Asterisk fast and simply, and provides flexibility, performance and lines which are to be had merely in dear proprietary company structures

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Org. Ever since the creation of the Asterisk project, the importance of a proper management GUI has been clear to everybody. Initially, Asterisk had no preset GUI, which opened the work for other people. Various GUI applications such as AMP (Today: FreePBX), VoiceOne, De-Star, and others tried various approaches; however, these approaches were so different, making each of these solutions a fairly closed solution. In addition, due to the nature of the Asterisk project, all these GUIs had to keep up with the Asterisk project, sometimes, they were simply unable to keep pace with Asterisk.

323. CODECS—Voice Coder Decoder Without diving too deep to the math, a codec is nothing more than a mathematical model, capable of sampling voice streams and compressing them. An ISDN BRI line is capable of traversing two telephone calls, running on each of its B‑channels. This means that in normal PSTN telephony, the codec used to traverse voice requires a throughput of 64kbps. [ 17 ] An Introduction to Telephony and Asterisk Now, imagine that you were able to take that 64kbps and utilize it differently—say that you can compress your 64kbps voice stream into something smaller.

Since the year 2004, Asterisk-based services and products have been constantly introduced to the market, starting with AstLinux, Asterisk@Home (aka: TrixBox), through A2Billing, to complete services environments like Rebtel and JaJah—the ever popularity of Asterisk could no longer be ignored by the industry. [ 20 ] Chapter 1 Asterisk is currently being deployed in multiple environments, both in the carrier and the enterprise. Where a traditional carrier would have installed a vendor-specific IP Telephony platform or an IP Centrex platform, carriers are building their own infrastructure based upon the Asterisk project, lowering their over all TCO (Total Cost of Ownership) and increasing their manageability.

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