Telephony [rss]

PodSnacks: Twisted Pair (TP)

Posted Tuesday, July 22, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/twisted_pair.mp3
Let's go down to the wires. Today, Paul will go through some of the history and basic characteristics of twisted pair . You can listen to (or download) the PodSnack by clicking here , or you can use the Flash player below. If you have an idea or request Read More...

PodSnacks: Integrated Services Digital Network (ISDN)

Posted Wednesday, July 09, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q2/isdn.mp3
We recently talked about the difference between a T-1 and a PRI. PRI is one of two interfaces defined in a service known as ISDN . Michel will take you through the basics. You can listen to (or download) the PodSnack by clicking here , or you can use Read More...

PodSnacks: T-1 vs. PRI

Posted Tuesday, July 08, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/t1_vs_pri.mp3
Recently, we posted a few PodSnacks on voice-related issues, including long distance (LD) and switched vs. dedicated access to LD. Today we're going to focus on trunking services and talk about the difference between a T-1 and a PRI trunking service. Read More...

PodSnacks: Switched vs. Dedicated Access to Long Distance

Posted Tuesday, July 01, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q3/switched_vs_dedicated_ld.mp3
Just last week we put out a PodSnacks about long distance voice services. Today we're going to build on that and talk about two different ways of getting long distance service: switched and dedicated. Most of us are familiar with the switched access Read More...

PodSnacks: Long Distance

Posted Thursday, June 26, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q2/long_distance.mp3
This past week, Trevor and I have been working with a customer to craft a new course to help their people better understand their own products and services, especially the newer ones. As we worked on the materials, I began to realize how many terms we Read More...

PodSnacks: Analog

Posted Wednesday, April 16, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/analog.mp3
Back to basics! Paul and I recorded this PodSnack about the word " analog ." It's a term that surfaces all of the time. The word itself is fairly innocuous. In telecommunications, it refers to a communications system that uses a continuously Read More...

PodSnacks: The Telephone Number

Posted Friday, April 04, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/telephone_numbers.mp3
Let's go back to some basics. We use the telephone every day. We use telephone numbers every day. Today, Dave tells you a bit about the structure of the telephone number, how it is assigned, and issues related to it. You can listen to (or download) Read More...

Career Advice

Posted Sunday, March 30, 2008 1:18 PM by mgilbert :: 0 Comments
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After I finish teaching a class, it is not unusual for one of the students to walk up to me and ask me what I think about their career prospects. Most of the time, the question is about what I think they should focus on for skill and knowledge development Read More...

PodSnacks: Sound

Posted Thursday, March 13, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q1/sound.mp3
And now for something completely different. Since the PSTN was engineered to carry the human voice from one point to another, its engineering must have been influenced by the nature of the human voice. So we need to know a little bit of something about Read More...

PodSnacks: Trunk

Posted Tuesday, March 11, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q1/trunk.mp3
Since we recently did a PodSnack on the central office switch , might as well stay with that theme and talk about a second component of the voice network: the trunk . This is the facility that interconnects two circuit-based voice switches (although the Read More...

PodSnacks: Central Office Switch

Posted Thursday, March 06, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q1/co_switch.mp3
I suspect my colleagues think I'm a little bonkers. I take delight in doing clean-up work in our wiki, and fleshing it out to be an increasingly useful tool for our students, prospective customers, and anyone else that finds it useful. Today I happened Read More...

PodSnacks: Signaling System 7 (SS7)

Posted Wednesday, February 27, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2007q1/ss7.mp3
And now for something completely different. Today we're going to shift from data to voice, and from routing and data centers to signaling. Our topic is the signaling heart of the Public Switched Telephone Network (PSTN): Signaling System 7 . In today's Read More...

PodSnack: Circuit Switching

Posted Thursday, February 14, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q1/circuit_switching.mp3
Back to basics. I can't believe that I have never recorded a PodSnack about something so fundamental as circuit switching . Circuit switched networks are far from gone, although lately more and more emphasis has gone to packet switched networks. But Read More...

Long Live the Femptocell?

Posted Sunday, February 10, 2008 3:31 PM by mgilbert :: 0 Comments
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When Mark sent me an email some time ago about femtocells, I thought the topic to arcane to spend time on in a PodSnack. But apparently this is getting to be serious business. A recent Telephony Online article indicates that several major players are Read More...

PodSnacks: Multiple System Operator

Posted Thursday, January 17, 2008 6:00 AM by mgilbert :: 0 Comments
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Attachment(s): http://podcast.hill-vt.com/podsnacks/2008q1/mso.mp3
We've had PodSnacks in which we've discussed ILECs , CLECs , and IXCs . But we've never talked about a very important player in the telecommunications market: the Multiple System Operator (MSO). Today we'll take the time to fill that gap. Read More...
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