Frequently Asked Questions

- What is SDSL?
- What are the benefits of SDSL?
- Why is World Lynx SDSL better?
- What speeds does World Lynx offer?
- What is meant by upstream and downstream?
- Is SDSL right for my business?
- Is SDSL reliable?
- Is SDSL secure?
- Can World Lynx SDSL be shared among multiple users?
- Do I need to upgrade my computer to use SDSL?
- Does SDSL require special equipment?
- Who installs this equipment?
- Does my wiring need to change to support SDSL service?
- Does SDSL affect the quality of my phone service?
- Can I buy my own equipment and install it myself?
- Will the telephone company charge me extra for receiving - SDSL
... from World Lynx?
- What if I want to upgrade my SDSL connection to a faster speed?
- What happens to my World Lynx SDSL service if I move?
- What type of backbone equipment does World Lynx use to
...provide SDSL service?
- Does World Lynx SDSL work with both Windows and Macintosh?
- Can SDSL be relied on to host a Web server or e-mail server?
- How many e-mail accounts do I get with World Lynx SDSL?
- How many static IP addresses do I get with my World Lynx
...SDSL account?
- What are my payment options?
- What are the technical assistance hours?

World Lynx SDSL vs. Other Technologies
- Is World Lynx SDSL better than 56 Kbps analog modems?
- How does SDSL from World Lynx compare to SDSL from the
... telephone company?
- How does World Lynx SDSL compare to cable modems?
- How does World Lynx SDSL compare to ISDN?
- How does World Lynx DSL compare to a satellite Internet service?

CPE FAQs
- What does CPE stand for?
- How do I get my SDSL router?
- What is inside wiring?
- What is a NIC card?
- What if the CPE stops functioning?
- What are the computer requirements to support SDSL?

Basic FAQs

What are the benefits of SDSL?
Fast Access - SDSL allows you access to the Internet at speeds up to 35 times faster than a 28.8 Kbps dial-up modem. This means Web pages will appear much faster, especially those with large graphics. Your e-mail will arrive and be sent much quicker, and advanced business applications are possible, such as Web hosting and e-commerce.

Always On - SDSL is a dedicated service, meaning it is always on. No more busy signals, and no more waiting for your modem to connect to the Internet. A single click of the mouse and you're on-line.

Inexpensive - SDSL offers high-speed Internet access at a fraction of the cost of other dedicated services, such as a T-1 line. T-1 lines can cost over $1,000 per month, while SDSL is priced up to 70% less so that small and midsize businesses can now afford high-speed dedicated access.

Why is World Lynx SDSL better?
World Lynx provides business-class SDSL solutions that are tailor-made for your business. World Lynx monitors their network 24 hours a day, 7 days a week with highly trained NOC (Network Operations Center) professionals. Most telephone companies cannot provide the business solutions or support that World Lynx does.

What speeds does World Lynx offer?
The following table details World Lynx service offerings. World Lynx packages offer symmetrical speeds because business applications require both high upstream and downstream speeds. Local telephone companies generally offer asymmetrical speeds, which are not appropriate for business use.

World Lynx DSL Speeds Solution Speed/Upstream Speed/Downstream SDSL 1.1 Mbps 1.1 Mbps SDSL 768 Kbps 768 Kbps SDSL 384 Kbps 384 Kbps

What is meant by upstream and downstream?
Upstream refers to the direction of information heading from your computer out to the Internet. When a user sends e-mail or hosts a Web server, you are sending information upstream. If you plan to send large e-mail attachments a high upstream speed is critical.

Downstream refers to the direction of information loaded from the Internet onto a user's computer. Examples of downstream loading are viewing Web pages and e-mail messages.

Is SDSL right for my business?
Your business will benefit from SDSL if you:

• Use the Internet to perform competitive research online, make electronic purchases, download software, use e-mail, or want to begin using the Internet as a business tool.
• Use multiple dial-up Internet accounts from the same location.
• Send or receive e-mail with large attachments.
• Do (or want to do) video conferencing or video streaming.
• Host (or want to host) a Web server and sell products or services online.
• Have an expensive T-1 or other dedicated service and would like to save money without losing speed.

Is SDSL reliable?
Yes. SDSL is a proven technology used by the core telephone network for over a decade.

Is SDSL Secure?
Because proprietary systems and information need to be safeguarded, network security presents another top priority for business customers. To answer this need, World Lynx offers you a routing solution that includes firewall software. This adds security to your uninterrupted connection by building a barrier between your network and computer hackers. As well, the World Lynx SDSL ensures your data is safe because it travels over a proprietary network. Alternatively, telephone companies usually include simple bridges with their ADSL services. Bridges generally do not have firewall capability, and therefore do not provide acceptable levels of security for business customers.

Can World Lynx SDSL be shared among multiple users?
Yes. Because World Lynx uses a SDSL router, you can connect several computers to one SDSL connection. This is perfect for businesses - now every worker can be online at the same time.

Do I need to upgrade my computer to use SDSL?
Your PC must have a network interface card (NIC, or Ethernet card). Most newer PCs already come with a NIC, but if you do not have a NIC, you will need to purchase one (available at most computer electronics stores). The NIC provides a jack on the back of the computer to which your new SDSL router will connect to.

Does SDSL require special equipment?
Yes. SDSL requires a special router (which World Lynx provides). The installer will bring your SDSL router when he/she performs the installation.

Who installs the DSL equipment?
A World Lynx SDSL installer will install the inside wiring and your SDSL router. The installer will complete standard inside wiring and connect the SDSL equipment to your PC (assuming you have a NIC installed), making certain that the connection is functioning properly.

Does my wiring need to change to support SDSL service?
Yes. A new line will be installed at your location to support your SDSL service. World Lynx will install this wiring during your SDSL service installation.

Does SDSL affect the quality of my phone service?
No. Your phone and SDSL service are on completely separate lines, so you can make calls or send faxes while on the Web.

Can I buy my own equipment and install it myself?
Yes. Customers can install and use their own equipment. However, World Lynx disclaims any responsibility for troubleshooting, fixing, or providing a warranty on the equipment. In the event that a customer installs their own equipment, World Lynx verifies that the line is working and able to pass traffic, because there may be interoperability issues with your equipment working on the World Lynx network.

Will the telephone company charge me extra for receiving SDSL from World Lynx?
No. All fees associated with your new SDSL service will come from World Lynx. With World Lynx SDSL service, you have one source for all your high-speed access needs. World Lynx does it all - the wiring, DSL service, Internet access, and one simple monthly bill.

What if I want to upgrade my SDSL connection to a faster speed?
Normally, you will be able to upgrade to a higher speed service without needing to upgrade your equipment. For example, the equipment used for 384 Kbps SDSL is the same equipment used for 1.1 Mbps SDSL.

What happens to my World Lynx SDSL service if I move?
If you move to an area where World Lynx service is available, World Lynx will work with you to transfer your SDSL service to your new location. If inside wiring is needed, there will be additional charges.
Note: Moving is considered a new installation, not a re-installation. You must go through the installation procedure again.

What type of backbone equipment does World Lynx use to provide SDSL service?
World Lynx uses an ATM (asynchronous transfer mode) switch and a DSLAM (DSL access multiplexer) to deliver SDSL. This equipment is located in telephone company central offices. ATM is a highly reliable, redundant, robust, scalable backbone technology that allows the integration of voice, video, and data.

Does World Lynx SDSL work with both Windows and Macintosh?
Yes. World Lynx SDSL works with both Windows and Macintosh computers.

Can SDSL be relied on to host a Web server or e-mail server?
World Lynx SDSL is a dedicated connection, which means users can host both e-mail and Web servers. World Lynx recommends purchasing at least 768 Kbps SDSL in order to host a Web server that supports the many users who may land on your Web site. There are also World Lynx packages available that offers Web hosting and e-mail services if you choose not to host your own.

How many e-mail accounts do I get with World Lynx SDSL? World Lynx accounts can receive up to 5 e-mail accounts. An additional e-mail address can be purchased for $5.00.

How many static IP addresses do I get with my World LYnx DSL account?
Each SDSL account gets one static IP address. Additional IP addresses can be provided for an additional charge.

What are my payment options?
World Lynx will send monthly bills via e-mail, or you can opt for monthly credit card billing.

What are the technical assistance hours?
You can reach the World Lynx technical assistance specialists from 8 A.M. - 9 P.M. Central Time Monday thru Friday, or Saturday from 10 A.M. - 6 P.M. by calling (501) 954-9090 or 1-888-775-9090.

World Lynx SDSL vs. Other Technologies

Other drawbacks to telephone company ADSL generally include:

• No service level agreements.
• Service is not dedicated and upstream speed is too slow; therefore Web hosting or e-mail hosting are not options.
• Insufficient speed for video streaming, video conferencing, or sending large e-mails.

How does World Lynx SDSL compare to ISDN?
World Lynx SDSL outperforms ISDN for the following reasons:

• ISDN is only available in 128 Kbps, which is significantly slower than most SDSL connections.
• ISDN doesn't offer dedicated, uninterrupted access.
• 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.
• SDSL was developed from ISDN technology - SDSL is a superior product that costs you less.

How does World Lynx SDSL compare to a Satellite Internet Service?
Internet access delivered via a satellite system is a recent addition to the list of high-speed access choices. SDSL is a better choice for three reasons. First, SDSL is easier to install. Satellite service is often difficult to set up, sometimes requiring multiple visits by the installation technician. Satellite service that works fine in the winter may not work at all in the summer when the trees add foliage. Also, as landscapes change new structures can block the signals. SDSL provides for two-way data transfer using the same advanced technology. Satellite service only provides for fast downloads. Uploads to your ISP require an additional means of signaling like a dial-up modem. Finally, SDSL is less expensive than Satellite Internet Service.

CPE FAQs

What are the computer requirements to support SDSL?

Minimum PC requirements are:
100 MHz (or faster) Pentium-based processor (or equivalent)
Windows 95 or better or Windows NT operating system
16 MB RAM for Windows 95 or 32 MB RAM for Windows 98/NT 4.0
50 MB of available hard disk space
CD-ROM drive
Installed 10BaseT Ethernet Network Interface Card (NIC)

Minimum Macintosh requirements:
Power PC or faster processor
Open Transport 1.1.1 enabled
Mac OS 7.55 or greater
16 MB RAM
50 MB of available hard disk space
CD-ROM drive
Installed 10BaseT Ethernet Network Interface Card