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VoIP Query: Where can I get a precice and concise “In a Nut Shell” summary of VoIp functionality?

I am a trained network engineer from being in the US Air Force. I am heavy on Cisco followed by Windows etc..and multiple IT Certs.. I moved from the assignment right about when we started installing VoIP and Wireless gear but didn’t get to enjoy playing with them.
I am going to do a thorough review of the VoIP technologies and try out either an inexperienced capacity or an internship to bolster that. If you are aware of any of the above feel free to make me part of your social network..I need to make use of those skills on payroll be4 it’s too late to be any good..
Another hurdle is that when I was doing most of my certs, the technologies were more infancy stages:
However of the:
CCNP, CCDP, and CCSP that I hold,
CCDP had the greatest high level assessment of voip and wireless

Answer by oalos255
Very good question.

Let’s consider the old days of telephony. Suppose we have a company with a location in CA and a location in NY. In the days of TDM before VoIP, a company may have something like 2 point to point T1 connections. One would be be strictly for voice using all 24 channels of the T1 for phone calls, one call per channel. The second T1 would be used for data traffic (1.544mbps)

This worked fine until companies began to realize that maybe they never actually had 24 concurrent phone calls and maybe they never hit 1.5 mbps of throughput over their data T1 but they were paying for 2 seperate T1 lines (which definitely is not cheap, especially in our example) They realized they could use a single T1 and instead of using it for only data traffic or only voice traffic. They could say, ok we want 12 channels of the T1 for phone calls and the remaining 12 channels for data. They just took a device and did something known as drop and insert where your 12 voice channels would be dropped off to your PBX and your 12 data channels would be dropped off to your router.

Again, this worked fine until companies said something like, hey, at 4 in the morning when we’re doing our data back ups and all of our employees have gone home for the night (no one in the office making phone calls) we’re still limited to our x amount of throughput for data since a portion of of our T1 connection is allocated for voice traffic.

Why can’t we just packetize our voice traffic into data as it passes over our T1 line. Enter VoIP. Take our analogue voice traffic, convert it to data using a codec like G.711 or G.729, pass it over the T1 and have a device on the other end to convert it back to an analogue signal.

Taking this a step further, with VoIP, you still have your analogue phones and PBX. IP Telephony on the other hand, is a step past VoIP. Instead of analogue phones, we have IP Phones, like a Cisco 7941G for example. Instead of a PBX, we have a server to handle the call processing. We can replace a big bulky PBX with a 1RU server. In the world of Cisco, this is known as Call Manager (now known as Communications Manager). Even better, in the world of Cisco, we can have all of our call processing done on a Cisco Router with Call Manager Express.

Pretty cool stuff. With an analogue phone, you’re very limited to what you can do. With an IP phone however, you can check the weather, find information about your flight status, do video conferencing etc. The cost savings here is one thing but the various applications that you can do with this are a whole other story.

I hope that’s a helpful crash course.
Jason
CCNA, CSE, CCENT, Network+

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Digium’s Switchvox Mobile Applications Boost Productivity by Bringing Key Functionality to Smartphones

Digium’s Switchvox Mobile Applications Boost Productivity by Bringing Key Functionality to Smartphones
HUNTSVILLE, Ala.—-Digium®, Inc., the Asterisk® Company, today announced the availability of Switchvox Mobile applications for iPhone and BlackBerry. The freely downloadable applications integrate with the company’s Switchvox Voice over IP Unified Communications solution to bring advanced UC functionality to employees even when they are away from the office.

Read more on Business Wire via Yahoo! Finance

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Skype enhances iPhone app with 3G calling functionality

Skype enhances iPhone app with 3G calling functionality
(Telecompaper) VoIP services provider Skype has launched the new version of its iPhone application. This update enables iPhone users to make and receive Skype-to-Skype calls, and to call mobiles and landlines around the world over their 3G data connection. New features of the Skype for iPhone application include near CD-quality sound for Skype-to-Skype calls using wideband audio on iPhone 3GS or …

Read more on Digital Media Europe

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Verizon Global Wholesale Boosts Functionality and Security for Selected VoIP Services

Verizon Global Wholesale Boosts Functionality and Security for Selected VoIP Services
Verizon Global Wholesale is now offering additional functionality for three of its product platforms, providing voice-over-Internet-protocol customers with a secure connection for transmitting information over the Internet and other public networks.

Read more on PR Newswire via Yahoo! Finance

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VoIP Query: Where can I get a precice and concise “In a Nut Shell” summary of VoIp functionality?

I am a trained network engineer from being in the US Air Force. I am heavy on Cisco followed by Windows etc..and multiple IT Certs.. I moved from the assignment right about when we started installing VoIP and Wireless gear but didn’t get to enjoy playing with them.
I am going to do a thorough review of the VoIP technologies and try out either an inexperienced capacity or an internship to bolster that. If you are aware of any of the above feel free to make me part of your social network..I need to make use of those skills on payroll be4 it’s too late to be any good..
Another hurdle is that when I was doing most of my certs, the technologies were more infancy stages:
However of the:
CCNP, CCDP, and CCSP that I hold,
CCDP had the greatest high level assessment of voip and wireless

0

BridgeWave Brings Quality of Service Functionality to High-Capacity Multi-Gigabit 4G WiMAX and LTE Networks

BridgeWave Brings Quality of Service Functionality to High-Capacity Multi-Gigabit 4G WiMAX and LTE Networks
SANTA CLARA, Calif.—-BridgeWave Communications, the leading supplier of gigabit wireless solutions, today announced the newest version of its FlexPort family of high-capacity 80 GHz radios for mobile backhaul.

Read more on Business Wire via Yahoo! Finance

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Clear releasing two new WiMAX modems with integrated VOIP functionality (Engadget)

We were recently lucky enough to experience Clear’s WiMAX service in Las Vegas for a week and, after having 4G available whenever we wanted it, we were a little sad to go back to our 3G domiciles. For those who live every day in a WiMAX wonderland, Clear has a pair of new modems for you, both featuring built-in ATA compatibility meaning those signing up for Clear Voice VOIP can jack their phones …

View full post on Yahoo! News Search Results for voip

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USB VOIP Phone and Card Reader

If you’re a huge fan of convergence devices, then the USB VOIP Phone and Card Reader might just rock your boat as it boasts the functionality of a full-duplex plug-and-play VOIP phone alongside an integrated USB card reader that…

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USB VOIP Phone and Card Reader

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Fortinet Announces Integrated Network and VoIP Security Platform (Marketwire)

FortiGate Voice-80C Combines UTM Security and PBX Functionality; Increases Ease-of-Manageability and Reduces Operating Costs for Mid-Market Customers

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Fortinet Announces Integrated Network and VoIP Security Platform (Marketwire)

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Iphone Deal Blocks Voip Over Cellular

AT&T and Apple agreed that Apple would not take affirmative steps to enable an iPhone to use AT&T’s wireless service (including 2G, 3G and Wi-Fi) to make VoIP calls without first obtaining AT&T’s consent.

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Iphone Deal Blocks Voip Over Cellular

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CTI Group US Blog: How Call Centers Can Benefit From a …

A recent Frost and Sullivan research report (“The Hosted Model: Why it’s Revolutionizing the Contact Center Industry”), compared the total cost of ownership for hosted VoIP services platforms to that of premise-based alternatives. …

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CTI Group US Blog: How Call Centers Can Benefit From a …

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Liveperson Clone

Hello, We are looking for a provider who can create a clone of kasamba.com specializing in only the psychic expert field.

Continued here:
Liveperson Clone

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VoIP Blogging: Wireless VOIP Phones – The Inexpensive Internet …

[Best VOIP Service Review] Unlike traditional international and long distance phone calls where you probably pay quite high charges for every second, the Voice-Over-IP call will only cost you corresponding to how much you pay for your …

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VoIP Blogging: Wireless VOIP Phones – The Inexpensive Internet …

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Has Anyone Unlocked Voip Functionality In The Nokia N95? | Free …

Nokia’s N95 has had it’s VOIP functionality removed by Orange and Vodaphone in the UK.

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Has Anyone Unlocked Voip Functionality In The Nokia N95? | Free …

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Calling on and iPod Touch!

… com, then click on the download tab. Then click “Download voip stunt….(READ) We will be using a free app from the iTunes App Store called Fring

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Calling on and iPod Touch!

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Skype opens up to corporates (VNU Net via Yahoo! UK & Ireland News)

VoIP provider Skype has finally decided to open up to corporates with the launch of a new beta programme designed to bring Skype calls to PBX systems based on the Session Initiation Protocol (SIP) standard.

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Skype opens up to corporates (VNU Net via Yahoo! UK & Ireland News)

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What is a Hosted PBX?

Technically, a hosted PBX can be “delivered” over standard telephone lines or as a VoIP solution….These days, most hosted PBXs are being deployed as VoIP solutions since the technology keeps getting better….

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What is a Hosted PBX?

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Virtual PBX revisited

A new breed of applications emerging from the intersection of VoIP and broadband may soon make the traditional premise-based PBX a thing of the past….This article written for VOIP magazine back in 2004 is worth revisiting….

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Virtual PBX revisited

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The VoIP Softswitch for starting ITSPs

IP Softswitch is a platform that allows to implement various types of Voice Over the Internet Protoc

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The VoIP Softswitch for starting ITSPs

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STC Wireless Router Vase

Saudi Telecom wanted a unique router design, that would step away from traditional routers, yet still have all the functionality including VoIP, land line telephone, w ireless and wired internet. I think the design looks great….

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STC Wireless Router Vase