By Barrie Dempster, David Gomillion, David Merel
The ebook bargains readers either an in depth description in addition to step-by-step directions on deploying software program ideas in addition to Asterisk configurations. Screenshots are supplied in sections to provide a visible standpoint of the directions. For Asterisk configurations real pattern code is indexed within the booklet that are without delay inserted into your Asterisk answer. This booklet is aimed toward an individual who's drawn to construction a robust telephony process utilizing the loose and open resource program, Asterisk, with out spending many hundreds of thousands of greenbacks purchasing a advertisement and sometimes much less versatile procedure. This ebook is appropriate for the beginner and people new to Asterisk and telephony. Telephony or Linux adventure should be beneficial, yet now not required
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Additional info for Asterisk 1.6
323, they chose to create a new de facto standard that would allow Asterisk servers to accomplish many things that are simply impossible with the other standards. 323. First, IAX pierces Network Address Translation (NAT) easily. Most firewalls and home Internet gateways use NAT, as well as some service providers. 323 have worked hard to develop standards to allow them to break through the different types of NAT. However, IAX can work through most NAT devices right out of the box. IAX is more configurable than the other protocols when dealing with Asterisk.
Today Asterisk servers can support hundreds of extensions and up to 240 simultaneous calls. For example, Asterisk Business Edition has been tested to handle up to 240 simultaneous calls without any issues. However, it being computerized, the speed, capacity, and reliability is fully dependent on the parts that make up the system. For this reason, ensure you have enough hard drive space, RAM, and CPU power to run your Asterisk server. Those of you who will be using a VoIP service provider for origination (receiving incoming calls) and also termination (outgoing calls) supporting SIP/IAX devices on remote networks, please ensure you have enough bandwidth from your ISP.
There are hardware devices that will detect if a PRI is down, and automatically failover. Then again, for most installations, this is overkill. The most important lesson to keep in mind is that people have grown to depend on phone systems. We should not skimp on hardware, as doing so could cost us dearly in the long run. With the unique pricing structure of Asterisk, all we will have to pay for is any additional hardware to get increased reliability and capacity. Along with hardware, the question often asked is—which distribution of Linux should I use?