May 2011
Intermediate to advanced
736 pages
17h 51m
English
book
Implementing Cisco Unified Communications Voice over IP and QoS (CVOICE) Foundation Learning Guide, Fourth Edition
by Kevin Wallace
Content preview from Implementing Cisco Unified Communications Voice over IP and QoS (CVOICE) Foundation Learning Guide, Fourth EditionBecome 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 1. Introducing Voice Gateways
After reading this chapter, you should be able to perform the following tasks:
• Describe the characteristics and historical evolution of unified communications networks, the three operational modes of gateways, their functions, and the related call leg types.
• Explain how gateways route calls and which configuration elements relate to incoming and outgoing call legs.
• Describe how to connect a gateway to traditional voice circuits using analog and digital interfaces.
• Define DSPs and codecs, and explain different codec complexities and their usage.
Cisco Unified Communications gateways play an important role in the Cisco Unified Communications environment. Their primary function is to convert voice formats, ...
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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.