Q.
What is DSL?
A. It is a service provided by the Telephone
Company or an Internet Service Provider that allows the customer
to connect to the Internet at speeds greater than 56 kbps.
Q.
Do I need
a second line for DSL?
A. In most cases, you will only need one
telephone line for DSL. Your DSL connection will allow you to
talk and surf the web at the same time without the need for a
second line. [SDSL most likely will require a second line, ADSL
in most cases will not.]
Q. Do I
need special equipment to
use DSL? (This should be customized for the way that
particular company is deploying DSL.)
A. Yes, there are two different ways that ADSL
may be provisioned – with and without a splitter. In both cases
you will need to have a DSL modem and an Ethernet Network
Interface Card (or USB port) in your computer. If you have a
splitter-less connection, then you will need filters for every
telephone that you have in your home. If you have a splitter
connection, then you will need to have the telephone company
install a splitter in your home.
Q.
Which
connection is better:
splitter or splitter-less?
A. Each has its own advantages. The splitter
is less flexible if you want to move your computer around, but
then filters are not needed for each telephone. When a splitter
is used, the splitter device is put where the company’s lines
connect to the customer’s inside wire (protector or NID). Then,
new inside wire is run from the splitter to where the computer
is located. If a splitter-less configuration is used, then all
the customer must do is to place a filter between the wall jack
and each telephone in use. You may need a splitter for full rate
ADSL. This could provide up to 6M bps of speed vs. Glite DSL
that only provides 1.5M bps. This depends upon the company’s way
of provisioning.
Q.
Can I
connect
more than one computer to my DSL line?
A. Yes, but you will need extra equipment. The
most common way to add a second computer to your DSL connection
is to purchase a router. The router is placed between your
computers and the DSL modem and acts to govern the connections
for both computers. Both computers plug into the router using
Cat 5 wiring. Companies will have to determine if they will
support the router – some are and some are not.
Q.
Am I
guaranteed that my
speeds will be faster?
A. Internet speed to a web site is determined
by several factors: Loop speed, ISP speed, Internet backbone
speeds and the actual website. With DSL the telephone company is
increasing the loop speed to the customer. However, the ISP,
Internet backbone or website may not be able to operate at the
highest speed allowed all the time. Therefore, depending upon
the number of users on the Internet, your connection speeds will
vary; however, you will find that your connection speeds will be
significantly faster than dial-up speeds.
Q.
What is
the difference between
DSL and Cable modems?
A. DSL is a direct connection from your
computer to the Internet Service Provider. There is no shared
connection. Therefore, it is a completely secure connection. In
order for someone to see your e-mails or what you are doing on
the Internet, they would have to hack into your Internet Server.
This is not the case with cable modems. They are a shared
connection. Because it is a shared connection, the loop speed is
shared between all your neighbors on the network. If there are
many users at one time the loop speed can be significantly
reduced even before it reaches the ISP, Internet backbone or
website.
Q.
Can all
customers get DSL?
A. DSL service is generally restricted to
those customers who live within approximately 18,000 feet of the
telephone company’s central office switch. Because of the
technological limitations on DSL, any customer living beyond
18,000 feet may not have access to DSL service. There are also
some instances where loops under 18,000 feet may not be capable
of DSL due to interference from other equipment installed on the
cable.
Q.
What do
the upload and download
speeds mean?
A. When you upload, you are sending
information to the Internet. An example is when you type in a
web page address and then hit “enter”. You have uploaded
information. Download is what you receive, such as a web page
full of words and graphics. Because we usually send much less
information to the Internet than we receive, we don’t need as
much upload speed as we do download speed.
Q.
Can I
still
keep my current Internet Service Provider?
A. Your Internet provider must contract with
either the telephone company or some other DSL loop provider to
have the capability of offering DSL. Otherwise, you will have to
switch to an Internet Service Provider that does offer DSL.
(CSRs should have a list of ISP’s that do contract for DSL.)
Q.
If I have
to
switch to a new Internet Service Provider to get DSL, must I
cancel my existing dial-up Internet service?
A. Many Internet Service Providers allow you
to connect without dialing into them using their dial-up
connections. You will have to check with them to see. CSRs
should notify the customer that if they retain their existing
ISP they will have to pay for the ISP associated with DSL as
well as the existing ISP. The existing ISP may charge less if
all the customer wants to retain is e-mail.
Q.
Will I
have to
change my e-mail addresses?
A. If you do retain an account with your
existing dial-up ISP and access your e-mail via some other
means, then you will not have to change your email address.
However, if you cancel service with your existing ISP you will
most likely have to change your email address.
Source:
Texas Telephone Association