1) What is DSL?
Digital Subscriber Line is an always-on, high-speed data communications
technology that is delivered using telephone lines, not the telephone
network. DSL refers to the technology used between a customer's premises and
the local telephone company’s central office. It enables up to one hundred
times more bandwidth over telephone lines than dial-up modems.
2) How does DSL work?
DSL maximizes the bandwidth capacity of copper phone lines currently used
for traditional telephone service. By utilizing higher frequencies, DSL can
achieve greater data rates on the same copper line. In order to transform a
telephone line into a high-speed data line, DSL equipment must be installed
on both ends of the line - at the customer premises and the local telephone
3) What are the various types of DSL?
DSL is a generic term used for a family of related technologies, including
RADSL, ADSL, SDSL, IDSL, and others. The leading DSL technologies being
deployed today include:
RADSL- (Rate Adaptive Digital Subscriber Line) - Most robust business DSL
- Developed to overcome line impediments;
- Automatically adjusts for environmental conditions;
- Because RADSL is a type of SDSL, it supports symmetric (equal downstream
and upstream) data transmissions up to 768K.
ADSL - Asymmetrical Digital Subscriber Line - ADSL supports a range of
asymmetric (higher downstream than upstream) data speeds that can reach up
to 7 mbps downstream and 1.5 mbps upstream. ADSL can deliver simultaneous
high-speed data and telephone service over the same line.
SDSL - Symmetric Digital Subscriber Line - SDSL supports symmetric (equal
downstream and upstream) data transmissions up to 1.54 mbps.
IDSL - ISDN based DSL technology, runs at a
maximum speed of 144 kilobits/sec. IDSL is able to reach greater
distances than other types of DSL thus allowing speeds greater than dial-up
for locations that do not qualify for other DSL flavors.
4) Who will bill me for my DSL service?
The billing and customer service are handled entirely by the carrier
5) Do I need an extra phone line for DSL?
Generally no. Depending on the carrier, DSL may be added to your phone line
or the carrier may provide a "local loop" or "circuit" through the local phone
company from your property back to their "central office" where their
DSL equipment is located.
If you choose a carrier that adds DSL to your
line, some line types, such as Centrex, will not work with DSL. If an
appropriate line is not available, you will need to add one.
6) How many users can I have on my DSL?
Multiple users can share a single DSL circuit on your network. Since the
service is then "shared", you may wish to purchase a higher speed to allow
higher speed access around your network. TelcoQuote can assist with
your network questions as well!
7) What type of IP address will I receive with Business DSL?
Many DSL providers include a dynamic IP address on their basic DSL service.
Dynamic means that an IP address is "dynamically assigned" each time your
circuit comes on-line. Since the IP address changes, you do not want
to use this option if you will be hosting a website.
Should your business require static IP
addresses, they are generally easy to order for you. Some carriers
charge an additional one-time fee, others charge a higher monthly fee.
TelcoQuote can you with these options, just ask!
8) What tech support is available after installation?
Most carriers represented by TelcoQuote provide 24/7 technical support.
9) When I place my order, am I guaranteed the service and the speed that
We pre-quality your address for DSL. It is highly likely that you will be able
to receive the service. Unfortunately, there are obstacles to installing DSL
at your location that cannot be known at the time of ordering. Should your
location be out side of the service area or your requested speed
unavailable, we will contact you as soon as we are aware of the issue.
10) Who will install my DSL service?
Many of the providers we represent send a
technician to complete your DSL installation. In some cases, the phone
company or DSL providers technician will complete the inside wiring, set up the DSL
router and test the service on one computer. (Inside wiring is the term used
for the process of taking the line from the location where the telephone
company left the line, to a jack on your wall where your DSL equipment will be
located.) If you have selected a self-install option, you will
complete your installation with telephone support if required.
Still have questions? Contact us.