September 2006
Intermediate to advanced
504 pages
11h 49m
English
Content preview from Authorized Self-Study Guide Cisco Voice over IP (CVoice)Become 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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Summary
VoIP networks leverage multiple protocols, and this chapter introduced such protocols as H.323, MGCP, SIP, RTP, and RTCP. VoIP components can be deployed using one of several call-processing models, such as a centralized call-processing model, where a cluster of Cisco CallManager servers reside at a central location with remote IP phones registering with the CallManager cluster over the IP WAN. Conversely, a distributed call-processing model might have a Cisco CallManager cluster at each geographic location.
A VoIP network’s scalability depends on a scalable dial plan design. This chapter examined various dial plan considerations and discussed how the North American Numbering Plan (NANP) might be adapted to a corporate environment.
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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.