August 2006
Intermediate to advanced
648 pages
15h 51m
English
Content preview from Cisco Voice Gateways and GatekeepersBecome 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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Chapter 18. Cisco Multiservice IP-to-IP Gateway
One of the latest buzzwords in Voice over IP (VoIP) infrastructure deployments is Session Border Controller (SBC). As VoIP deployments move from individual islands of voice networks to end-to-end voice solutions, SBCs become a crucial infrastructure device that sits on the border of two networks handling real-time voice and video sessions. Before SBCs, service providers implemented back-to-back time-division multiplexing (TDM) gateways when interconnecting with other service providers. They were able to create points of demarcations between the networks, but because of the involvement of the digital signal processors (DSP), not only was delay being introduced, but also degradation in the voice/fax ...
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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.
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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.