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
This chapter discussed the configuration of various analog and digital voice ports. For example, analog voice ports, such as FXS and FXO ports, need an appropriate signaling type (that is, loop-start or ground-start) to communicate with attached equipment. E&M port configurations also need to match the configurations of the equipment connecting to the E&M ports (for example, a PBX E&M interface). This chapter also reviewed various analog port timing parameters.
Digital port configuration included parameters such as line coding and framing. Additionally, this chapter introduced how DS-0 groups logically combine multiple channels in a digital circuit (for example, a T1), thus reducing the number of required configuration steps. Several ...
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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.