Showing posts with label fast t1. Show all posts
Showing posts with label fast t1. Show all posts

Tuesday, December 16, 2008

Video Conferencing and Why Polycom Shares Are Down


Once again, the IT pundits were wrong. Lots of “experts” said the video conferencing and TelePresence industries would enjoy a boom during the economic bust.


The reasoning: Executives are cutting business travel to save money, and opting instead for video conferencing and TelePresence. But here’s the problem: Not all video conferencing companies are built equally. Consider the situation of Polycom (a big, established player) vs. LifeSize Communications (a nimble start-up). Read more of the story....

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Saturday, December 6, 2008

No More Corporate Travel..Huh??


By Christian Renaud Read More of his green blog here.

We live in a sea of communications options. So why do people still hop on cross-country flights for two-hour face-to-face meetings instead of using rich collaboration technologies like video conferencing, voice over the Internet and virtual worlds?

I was one of those people. I had spent the first three-quarters of 2007 almost living on aircraft. But I knew there was a more environmentally friendly — not to mention time-efficient — way to accomplish the same outcomes.

So in October 2007, I made a resolution to use virtual world technologies — in tandem with video conferencing, IP telephony, and web conferencing (using WebEx) — instead of air travel and face-to-face meetings for the remainder of the year.

How to Do the Virtual Life
For the next three months I attended or presented at all but one event "virtually" — often using virtual worlds for one event and video-conferencing for a later event that same day.

What I discovered during this process was that, for the majority of human-to-human interactions, you can easily substitute electronically mediated meetings for face-to-face meetings without a deprecated experience for both parties, and with none of the associated emissions from travel.

Here are three things I found to be particularly helpful in deprogramming people from defaulting to an in-person meeting:

"Expectation management" — being proactive in broadcasting to meeting organizers that I could participate remotely, however not in person. This message gave the organizers the freedom to decide if they would risk some social slight in having a remote presenter or not, and give them a graceful way to reconsider.

Always provide a follow-up mechanism to the remote attendees — in my case, my blog URL and email address.

There are always some people at meetings who are reticent to ask questions during the event, then come up to you immediately afterwards. But if you have already virtually disappeared, they're left without answers. By being able to follow up afterwards (analogous to swapping business cards for a follow-up call), you're still able to connect with everybody who participated.

Pick the right tool for the job. Calls or emails are good for simple questions. But for a once-a-month 1:1 with an employee, video conferencing allows you to connect at richer level.
For meetings with many participants — where a telephone call would be cacophonous and a video conference would look like a test pattern — virtual worlds are the best tool. They allow multiple participants to interact as they would were they physically proximate.

When the Personal Touch Is Required
When must you meet in-person? The more sensitive the context (or content), the more the participants want to see you face-to-face. Being there provides all of the participants the benefit of those non-verbal queues so critical to important and/or sensitive conversations.

But for the vast remainder of daily interactions, you’ll catch me using virtual worlds, video conferences, web conferencing and Internet telephony during 2008.

The opinions expressed in this article are the author's and do not represent those of The Nature Conservancy.




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Thursday, December 4, 2008

Tightening Telecom Economy! Business BroadBand On Rise

Doug Allen or Vertical Systems Group writes about the Broadband industry....

If you’re looking for a narrow snapshot of the overall health of business telecom, you might want to check out a recent research report from Vertical Systems Group. In a report entitled “U.S. Access Landlines Connect 5.3 Million Business Sites,” lead author and VSG Principal Rick Malone finds that the number of business customers with landline connections at their U.S. sites has increased by nearly 700,000 lines over the past five years to the aforementioned 5.3 links. That’s a net increase of about 7 percent over that period.

As things stand, this shift towards more Ethernet-based access alternatives over traditional T1s means incumbent telcos have to share more of the business broadband access pie than they are accustomed to. Those incumbents account for about 46 percent of the U.S. Ethernet access market, a far smaller showing than it used to command when T1s were the dominant access medium.

The balance is made up of rival service providers such as Time Warner Telecom and Cogent (remember when this former DLEC/CLEC used to specialize solely in DSL and T1 access?), at about 34 percent, and 20 percent sold by the hard-charging, surging cable operators who continue to raise access line rates much more quickly than corresponding rate increases for telco DSL.

However, as reported elsewhere, the trend towards growth in broadband access lines has started to reverse itself over the last four to five months. Malone has been quoted predicting a “moderate downturn,” though “not a huge disastrous” one in business broadband access.

The decline in business access lines is largely due to office/site closings, especially among financial services companies, according to Malone, who feels businesses are likely only to add access lines where deployments are already in progress or new access lines will bring near-term savings over the existing plant. Examples include legacy network (Frame Relay and ATM) convergence and migration to an IP VPN or Ethernet VPLS transport.

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Wednesday, December 3, 2008

DS3 Works for Large Volume Internet Transfers

DS3 FOR LARGE VOLUME DATA AND VOICE TRANSFERS

It is becoming obvious that a standard T1 circuit will not be able to cope with the growth of bandwidth applications. For example a T1 circuit is 1.5 megabits/sec whereby downloading a three minute piece of music is 3MB or 24 megabits.

Uploading or downloading a digital photograph would use 2 MB or 16 megabits. A Power Point presentation is 10 MB or 80 megabits. If several office workers were to transmit a Power Point presentation at the same time the T1 connection would slow down for three or more minutes.

Read more here and comments below....


Fred Welsh said...
I agree, T1 services will not be sufficient enough for large businesses. But T1 services are incredibly viable for small businesses and home consumers. Don't underestimate the bandwidth of a T1 line! T1 Survey
7:10 AM

john said...
I also agree, while T1 is great D3 is so much better and more capable to handle everything. http://getds3.com/is a company to look out for.
5:36 AM

Mark Allen said...
Great info, next time if you could break the article into paragraphs for easier reading it would be great.We have put together a very indepth glossary of terms which you may use....Simply T1 Glossary.

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Tuesday, December 2, 2008

Top Network and T1 Glossary Terms












Glossary

I have included here a few of the most commonly used T1 and Network Cabling keywords. For an in depth list. Just use one of the blue links.


Cat 3 Cable: The Cat 3 Cable is a UTP (Unshielded Twisted Pair) cable, which reliably carries up to 10 Mbit/s of data. It has a possible bandwidth of 16Mhz. Cat 3 is still mostly in use in two-line telephone systems, but has been mostly superceded by the higher performing Cat 5 standard.

Cat 5 Cable: The Cat 5 Cable is a twisted pair cable, mostly unshielded (but there are shielded types.) It is designed for high signal integrity, and can carry up to 155 Mbit/s over short distances. It is used mostly for Ethernet networks, basic voice services and ATM's, but has been superceded on many industries by the Category 5e specification.

Cat 5e Cable: The Cat 5e cable is an enhanced Cat 5 cable, with added specifications for far end crosswalk. With its tighter specifications, it is an excellent choice for 1000BASE-T.

Cat 6 Cable: The Cat 6 cable is standard for Gigabit Ethernet and similar network protocols. It is backward compatible with the Category 5 and Category 5e standards. The Cat 6 cable standard delivers a bandwidth of up to 250Mhz. The Cat 6 cable is more effective for system noise and crosstalk.

Coaxial Cable: Coaxial Cable is an electrical cable, and consists of a round counducting wire covered by an insulating spacer, which is covered by a cylindrical conducting sheath, lastly covered by a final insulating layer. It is used for high-frequency transmissions and broadband.

Structured Cabling: The term “Structured Cabling” refers to a cabling infrastructure for a building or campus. It consists of many smaller elements, all standardized according to a specification. These are called subsystems.

Plenum Cabling: The term “Plenum Cabling” refers to structured cabling laid in the plenum of buildings (the space where air circulation – heating and air conditioning systems – are facilitated.) It has a slow-burning, fire-resistant casing.

Non-Plenum: Non-Plenum refers to structured cabling that run between floors (non-plenum areas), and rated more as riser cable.

Fiber Cabling: Fiber Cabling is the term used to refer to structured cabling using the Fiber Optic standard.

Fiber Optics: Fiber Optics is a loose term that refers to both the applied science and engineering fields that overlap in structuring fiber optic systems using optical fiber. Optical Fiber is very thin plastic or glass fiber wire, made from incredibly pure optical glass, designed to use light to carry digital signals.

Network Cabling: Network Cabling is a broad term referring to network or ethernet structures or cabling, for a building, office or campus.

RJ 45: The RJ-45 is the standard connector used for Ethernet, T1, ISDN, or 4-pair UTP cables.

RJ 11: RJ-11 is the standard connector used for 2-pair (4 wire) telephone wiring. It comes in both UTP or untwisted cable.

Ethernet: An Ethernet refers to the various computer networking technologies for a Local Area Network (LAN.)

LAN: LAN stands for Local Area Network and refers to a computer network for a small area, such as an office, home or group of buildings.

WAN: WAN stands for Wide area Network and refers to a computer network that covers a broad area, where communications can cross national, regional or metropolitan boundaries.

MEGABYTE: A unit for measuring computer memory or data storage. A unit of information equal to 1000 kilobytes.

GIGABYTE: A unit for measuring computer memory or data storage. A unit of information equal to 1000 megabytes.

TERABYTE: A unit for measuring computer memory or data storage. A unit of information equal to 1000 gigabytes.



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Saturday, November 29, 2008

Cat5 Cable Most Popular of Twisted Pair Cables


The most popular of all twisted pair cables in use today. CAT5 cable contains four pairs of copper wire. It supports Fast Ethernet speeds (up to 100 Mbps).


The industry now has adopted that all Cat5 is Cat5e: meaning when you ask for Cat5 you are geting enhanced with 1 gigabit ethernet.


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