July 2017
Intermediate to advanced
434 pages
12h 59m
English
Content preview from FreeSWITCH 1.8
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Encryption with SRTP
SRTP is an encryption mechanism that is negotiated during call setup via SIP. Both sides of the SIP conversation must agree to support RTP encryption and exchange keys for encryption in the SIP packets. The encryption key used for SRTP is exchanged inside SIP packets. This information is then used to encrypt the audio stream.
SRTP enables encryption of the RTP data with minor overhead to the RTP UDP packets. This has the benefit that the call data are encrypted but still transmit via UDP, minimizing latency and using network traversal mechanisms that would normally be used in an unencrypted stream.
Generally SRTP is the most firewall friendly strategies for existing installations since the actual work has already been ...
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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.