July 2016
Intermediate to advanced
300 pages
6h 49m
English
Content preview from Mastering FreeSWITCHBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Tapping audio
You may need to listen someone else's call. First of all be sure to be compliant with international laws and regulations and those of your country: Rumors that the Alphabet Soup is wiretapping the whole world will not shield you from a lawsuit or a criminal investigation. If you're positive you have the right to listen, FreeSWITCH has two dialplan applications to choose from: eavesdrop will allow you to listen to an arbitrary call (defined as an uuid argument to the app), while userspy will constantly eavesdrop on calls involving a specific user.
Using eavesdrop on a call (also known as call barging) requires knowing its uuid (you may use all as uuid, but you'll end up listening to all existing calls mixed together). One such technique ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.