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An Honest Review of Vonage: A feature-rich, World-ready VoIP
With more players jumping into the already populated space of Voice over the Internet Protocol (VoIP), the perceptive user has that much more choice. Vonage is a leading player in this marketplace with over a million subscribers worldwide in a...
Increase in Customer Sales = Increase in Customer Service
One of the most popular questions asked in online business forums or even by my customers and subscribers is this : “How the hell can I increase my sales?” or “I’ve got tons of visitors but nobody seems to be buying anything? What...
The Secret Benefit Of Accessibility: Part 1 - Increased Usability
Web accessibility has so many benefits that I really do wonder why such a large number of websites have such diabolically bad accessibility. One of the main benefits is increased usability, which according to usability guru, Jakob Nielson, can...
Web Site Basics
Web Site Basics By Clare Lawrence 8th June 2004 The web or internet is an exciting place, but can seem very daunting to the novice web designer. You want to get a web site up and live, how is it done, and how can it be done cheaply? Domain...
What SMS Users Are Telling Telcos
The recent rollout of 3G-ready mobile devices has caused a lot of excitement in the Telco industry, especially in the Asia-Pacific region. This article will highlight the message that current customers are sending through their SMS messaging...
 
Some DSL Broadband definitions

Some DSL Broadband definitions,

Often too many people get confused with all the definitions, here we have explained in easy to understand terms.

ADSL:
Asymmetric Digital Subscriber Line - asymmetric meaning it's faster downstream than upstream.

ASAM:
Advanced Services Access Manager -Whether you have a DSLAM or ASAM in your exchange doesn't really matter. They do the same thing. See DSLAM's as well.

ATM:
Asynchronous Transfer Mode - a method of encapsulation which is capable of many virtual circuits. With these, providers (ISP's) can split an ATM connection (155Mbit or 622Mbit) up into many connections. ATM isn't just used for DSL but in the case of DSL it's used to provision each customer.

Contention Ratios
A contention ratio is the number of users to xMbit of bandwidth. For example some providers offer 2Mbit DSL, with a ratio of 50:1, meaning 50 users to 1Mbit of bandwidth.

CPE
Customer Premises Equipment, the term that describes the equipment used on the customer end of a connection, for example your DSL modem/router, cable modem, black box on Wired Country etc.

DSL
Digital Subscriber Line.

DSLAM
Digital Subscriber Line Access Multiplexer - They are placed in DSL enabled Telecomm exchanges, when your modem syncs up and the DSL light comes on, it means you are connected. When data travels down your connection, it goes from the CPE -> DSLAM -> RAN -> ISP

ERX
Edge Routing Exchange. See RAN.

IPNet
Telecommunications backhaul networks for carrying traffic from the customer to the ISP,


i.e. carrying traffic from RAN's to ISP's.

Ping or Latency
A ping measures the time in milliseconds that it takes for a packet to travel from your computer to a remote computer and back to you again. Just because you can't ping a given host, quite a lot of providers are beginning to filter ICMP (pings come under this protocol) traffic because it is commonly used to attack hosts and wastes a lot of bandwidth.
Many providers also give low priority to ping (ICMP) traffic which may mean your ping at a command line isn't very good, but in say a game, things may be fine.

RAN
Regional Access Node These aggregates many DSLAM's connections and then feed the data to an ISP

RTT
Round Trip Time - the time it takes in milliseconds for a packet to go from A to B and back again. See ping.

SDSL
Symmetrical Digital Subscriber Line - symmetrical meaning the same speed up and down.

Units

There is a major difference between UPPER and lowercase

MB = MegaBytes
Mb = Megabits
kB = KiloBytes
kb = Kilobits

MB/s = MegaBytes per second
Mb/s = Megabits per second
kB/s = KiloBytes per second
kb/s = Kilobits per second

There is 8bits to a Byte, 8kb = 1kB

1Meg connections only transfer at 128kB/sec.
or an 8Mb connection only transfers at 1024kB/sec or 1MB/s
About the author:

Steve owner and operator
© Private Mail Services
http://www.private-services.com 2005 - helping to keep you anonymous

 

Broadband Internet access - Wikipedia, the free encyclopedia
Broadband Internet access became a rapidly developing market in many areas in the early 2000s; one study found that broadband Internet usage in the United ...
en.wikipedia.org
 
UK Broadband Internet Access
Listings of UK broadband internet access providers and their prices, links to provider guides and reviews.
paler.com
 
PC World - Buying Guides - Broadband Internet
Buyers' Guide to Broadband Internet Contents ... For the majority of those looking to upgrade to broadband Internet for the business or home, it's all about ...
www.pcworld.idg.com.au
 
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Discount offers for broadband high speed, cable and DSL Internet access service providers from Broadbandinfo.com. Additionally we provide free online high ...
www.broadbandinfo.com
 
Telewest - Broadband Internet - Digital TV - Phone - Cable ISP ...
. ... Jump to the Homepage [Accesskey '1']; Jump to Navigation menu [Accesskey 'n']; Jump to Main Content [Accesskey 'c']; Jump to Contact Us [Accesskey ...
www.telewest.co.uk
 
FCC Broadband Internet Access Page
List of resources from Federal Communications Commission regarding broadband Internet and access issues.
www.fcc.gov
 
BT.com: Broadband Internet, mobile and fixed telecommunications ...
National telecommunications provider. Details on products and services, plus user area.
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Primus > Home - Australia's leading Broadband Internet, Telephone ...
Primus / iPrimus - Australia's leading Broadband Internet, Telephone, Mobile, VoIP and Dial Up provider.
www.iprimus.com.au
 
Virgin.net ISP - Broadband Internet access, news and entertainment
Virgin.net, the UK's innovative Internet service provider. All you need for broadband and dial-up access, entertainment, information and news.
www.virgin.net
 
1 24% of rural Americans have high-speed internet connections at ...
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ADSL Plans - ADSL Modems - ADSL Broadband Internet - Telstra BigPond
Choose from BigPond broadband ADSL plans by speed and usage to suit your needs. View BigPond broadband ADSL modem options for your broadband ADSL internet ...
www.bigpond.com
 
ntl.com | broadband internet, telephone packages, cable tv
Broadband cable internet access from ntl, get high speed cable internet access at affordable prices.
www.home.ntl.com
 
Westnet - Broadband Internet, ADSL, Dialup, Web Hosting, Domain ...
Westnet provides a range of Broadband Internet, ADSL, Dialup, Web Hosting and Phone services Australia wide. Connect with Australia’s Number 1 ISP for ...
www.westnet.com.au
 
Broadband Internet : Find Broadband Internet Access Providers with ...
Find Broadband Internet Service Provider. TheBroadbandGuide.com is a comprehensive directory of Broadband Internet Provider.
www.thebroadbandguide.com
 
Internode - Broadband ADSL Internet Access
Internode - Broadband Internet Access and other Internet services. ... Internode Broadband ADSL is the broadband Internet solution you have been looking for ...
www.internode.on.net
 
CHOICE - Setting up broadband internet
Setting up broadband internet. How to get ADSL broadband, step by step Online 02/04. Contents. Setting up broadband internet · Availability and choice ...
www.choice.com.au
 
Wireless Broadband Internet Service Provider: High Speed Wireless ISP
Clearwire is a wireless broadband internet service provider (high speed wireless ISP) providing high speed wireless broadband internet access in Abilene TX, ...
www.clearwire.com
 
SurfCity Networks Broadband Internet
SurfCity Networks Broadband Verizon DSL High Speed Internet and Web Hosting.
www.surfcity.com
 
ISP - Wireless Broadband Internet Provider, iBurst, ADSL Broadband ...
Australian ISP providing business dialup, high-speed broadband, network access and datacentre services.
www.chilli.net.au
 
NTL - Broadband Internet - Digital TV - Phone - Cable ISP ...
Digital Television Network.
www.ntl.com
 
 

 
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