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Frequently Asked Questions

Should I get an ISDN or DSL line?

TECHNICAL PAGE
When considering an ISDN or DSL line, know the pros and cons. Cost: ISDN through the telephone company costs an average of $60 / mo., plus a connection fee, and DSL is usually about $45 / mo. Sometimes connection fees are discounted when signing a one year term agreement (check with your provider). With ISDN, you should get 2 to 3 times faster downloads, and DSL is generally 10 - 20 times faster than dial up.

What will DSL do to ISDN?

Direct Internet Access Frequently Asked Questions
That all depends upon the telephone companies offering both services. The two services are not the same -- ISDN provides two voice channels or a 128 Kbps data channel while DSL is predominantly a data pipe providing an asymmetrical bandwidth of up to 8 Mbps downstream and 1 Mbps upstream under good conditions. However, an DSL access network will be an overlay network and therefore will not require the expensive and time-consuming switch upgrades that held ISDN back for so long.

What's the difference between ISDN service and DSL service?

INTERNET JUNCTION - DSL Modem Access: FAQ (Frequently Asked ...
DSL is Faster: ISDN provides two voice/data channels, each at speeds of 64 Kbps, while DSL is predominantly a data service providing up to 1.5 Mbps downstream and up to 512 kbps upstream. Business DSL offers T1-like speeds of up to 1.5 Mbps-more than 10 times faster than ISDN! DSL is "always on": ISDN is a dial-up service (like a regular telephone line) that's digital and carries both data and voice; Business DSL is "always connected"

Is ISDN better than DSL or Wireless?

Mercury Network Dial-Up Frequently Asked Questions
No. DSL and Wireless services give you greater "bang for the buck", and come in speeds up to 3.0M, but you may not be able to get DSL or Wireless at your location. We recommend ISDN for locations where DSL and Wireless are not available and T-1 is not needed or affordable.

Why do I need DSL if I currently have ISDN?

BellSouth - BellSouth DSL and business local phone service.
DSL is even faster than ISDN. And DSL sends data and voice over the same line so you talk on the phone while you connect to the Internet.

I already have ISDN; can I use DSL also?

ADSLdirect FAQ & Billion ADSL2+ Routers & Modems
Your ISDN line will not support both DSL and ISDN; this means that you must have one set of wires for each service. If you want to drop ISDN service in favour of DSL you can use the wires that were installed for the ISDN line. DSL needs a few important hardware items for it to correctly work. In order to separate your voice transmissions from data over the copper line you will need to install a simple and small splitter (available from us for $ 95.00).

What is the difference between a modem, ISDN and DSL?

Microbitz : computers, software, service
A modem converts your computers data packets into an analogue signal (sounds a bit like a fax machine) and uses the normal telephone network to pass this to your ISP (Internet Service Provider) who then turns the signal back into data and thus enabling your computer to communicate on the Internet. ISDN also uses the telephone network to transmit data to the ISP but does not convert the data to analogue signals; instead it uses digital equipment at the exchange and on your computer.

Can I get DSL on an ISDN line ?

DIGIWEB – Irish broadband internet & phone. Metro,...
option is now available in the order process to migrate your ISDN line to a normal phone line, if your line is DSL suitable. Something to consider is that your ISDN line will normally have two phone numbers and two lines attached to it. When downgraded, the second line and number will be lost ? make sure you check this out fully before ordering as it cannot be readily reversed. As there is an extra step or two involved, ISDN line to DSL orders may take slightly longer.

What about DSL and ISDN, how do they compare?

Creative Network Innovations, Inc. ~ CNI ~ Solid Internet So...
DSL will be the cause of ISDN's demise for several reasons: - ISDN is only available in two speeds: 64 Kbps and 128 Kbps, both of which are significantly slower than most DSL connections. - ISDN sometimes offers dedicated, always on access but not always. Furthermore, ISDN is subject to additional per-minutes fees in many locations. ISDN fees can easily be in the hundreds of dollars on a monthly basis. -ISP's will charge between $30-150 a month to provide Internet access to ISDN customers.

How does DSL compare to ISDN?

Web Design, Web Hosting, Computer Networking, Network/Databa...
ISDN is only available in two speeds: 64 Kbps and 128 Kbps, both of which are significantly slower than most DSL connections. ISDN is subject to additional per-minute fees in many locations. ISDN fees can easily range into the hundreds of dollars on a monthly basis. Internet service providers often charge $30-$150 a month to provide Internet access to ISDN customers.

Now that DTC has DSL, why even offer ISDN ?

FAQs
These are two completely different services. DSL is a dedicated connection usually to an Internet service provider (ISP) while ISDN is by definition switched. An example of when ISDN would be appropriate would be for video conferencing to different locations at different times. Another example would be if the addition phone line is more valuable to your or your business than only intermittent use of the higher speeds. TOP Your computer will connect to the DSL modem via Ethernet.

If I have ISDN, can I switch to DSL?

Flashcom - The DSL Specialists
Yes. If the service is available in your area, you can cancel the ISDN line and use the same wire for DSL.

Q What is ISDN?

Internet Texoma FAQ
A ISDN stands for Integrated Services Digital Networks. It is an all-digital, circut-switched telephony system that is an alternative to analog modems, although both can operate over regular copper telephone lines. What this means for you is faster, more reliable connections. ISDN comes in two different speeds, 64k and 128k. Many of the problems that exist with normal analog modems which operate over POTS (Plain Old Telephone System) do not exist with ISDN.

Can my customers use cable, DSL or ISDN lines with MyOrderDesk?

How Does It Work? - MyOrderDesk Frequently Asked Questions
Yes, cable, DSL, ISDN, and T-1 lines will all work with MyOrderDesk. So will plain old modems. In other words, anyone with an e-mail account who can surf the Web with a browser can use MyOrderDesk. Back to Top Learn More..

What's the difference between a wireless connection, and a DSL or ISDN connection?

zNET Wireless Broadband
The most important difference is that we offer and guarantee your high-speed Internet access all the time at a price that is affordable. Most other services do not. In fact, it's right there in our contract agreement. While DSL (digital subscriber lines) and ISDN (integrated services digital network) connections transmit information over telephone lines at rates ranging from 32 Kbps, 128 Kbps, and much faster, these speeds are not provided to customers 24 hours a day.

Can we use existing ISDN equipment for DSL service?

SpeedGate Communications -- Business DSL FAQ
If you have an existing ISDN modem, it can be used for a 144kbps DSL connection (IDSL). However, you will not be able to use the same line for DSL service. If you would like to upgrade your speed, you will need to purchase a different modem.

Can I switch my local carrier if I currently have ISDN or DSL Internet service?

VoIP & Phone Service Learning Center - T1's, PRI, Broadb...
Generally no. There are technical and support system issues that preclude switching your service if you have ISDN or DSL with many competitive local service suppliers. Several carriers on the SmartPrice.com site provide DSL services so it may be possible to drop service with your old carrier and reestablish it with your new one.

Can I plug my amplified phone into an ISDN or DSL line?

Phone FAQs
Most telephone lines in your home will be analog lines which are safe for amplified phones and ring signalers. However, if you are using an ISDN line for your internet connection, do not use any assistive device on this line. ISDN is a digital technology and may damage your assistive equipment. If you have DSL service for your internet connection, this is analog technology and is safe for use with assistive equipment.

How does the system affect a DSL or ISDN line already installed?

I O W A T A L K
The system should not influence a DSL or ISDN at all. Because the internet traffic is on a different frequency, it is not perceived by the phone as being a phone call.
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