BayanTel DSL Service Self-Help Guide Digital Subscriber Line (DSL) is a technology that puts high speed digital data on standard two-conductor voice-grade telephone wiring. It is often added to an existing telephone line. When properly installed, the DSL service and phone can be used simultaneously without interference. When improperly installed, telephones and other equipment connected to the telephone line can cause problems with the DSL service. This application note describes why this happens, and how to fix the problem. Why Telephone Equipment Interferes The DSL signal can be "superimposed" on an existing phone line because the frequencies DSL uses are far above the frequencies used in voice conversations. Telephones won't even reproduce these frequencies. So the DSL signal doesn't interfere with phones...it's the other way around. The problem is that the circuitry inside virtually any device that connects to the phone line isn't designed with DSL frequencies in mind. DSL wasn't even around when most of these products were designed! If you think about it, the telephone handset is always "listening" to the phone line... After all, it needs to know when to ring, right? The answering machine needs to know when to pick up, and even your alarm system may have the capability to receive incoming calls (to arm the alarm remotely, check on status, etc.) Even if these features aren't enabled, the circuitry is still connected to the phone line. This circuitry often "shorts out" the DSL signal---keeping you from getting a reliable DSL connection. Even if it doesn't, we’ll guarantee it will as soon as you pick up a phone! So something must be done to keep the telephone equipment from interfering with the DSL signal. How to Properly Install DSL Service There are two ways to keep your telephone equipment from interfering with your DSL signal: The easiest method is to put something between each piece of telephone handset and the line to keep the equipment from interfering. The preferred method is to split the outside phone line, as it enters the house, into a DSL line and a voice line, and run separate wires to each. A Proper DSL Installation Simple, an actual human being would come to your house or office to perform the installation. The process is easy to describe. But, depending on the layout of your house or office, where the phone line came in, and where you wanted the DSL jack, the actual installation could be quite difficult. In essence, here's what the installer would do: He would start at the "demarc box" (a little box where the phone line comes into the house). He added a little box (alternatively called a splitter, filter, low-pass filter) to the wall next to the demarc box. In the demarc box, he disconnected all wires that went to the phones inside the house and moved them over to the new little box. Then he ran a jumper from the demarc box to the filter. He would then run a wire from the filter, around and through the house or office, to wherever your computer was located. He would put a jack on the wall there, mark it "DSL", plug the DSL modem into it, connect it to your computer, and even configure your operating system with the proper addresses and options and such to get your connection up and make sure it was working. A proper installation involves actually "intercepting" the outside phone line before it enters the house, splitting it into a DSL side and a voice side, connecting the voice side to the inside phones, and then connecting the DSL side directly to one and only one device: the DSL modem. And voila, you have DSL Frequently Asked Questions 1. Why don’t I get the speed that I availed or get intermittent connection? Slow speed may be caused by many factors such as forms of technical interference (nose, electrical shorts, and software problems), congested websites, PC/modem related, virus, uploaded programs which run automatically, and more. Verify your DSL connection speed through the speed utility. All Internet activities should be halted except the checking. Go to http://www.pinoydsl.net/viewtopic.php?t=5 To verify your DSL connection speed, stop all Internet activities and go to http://www.pinoydsl.net/viewtopic.php?t=5 If you have intermittent connection, stop all Internet activities and try to ping your gateway address. Monitor at least 5 minutes. If you receive request time-out frequently then proceed with the initial troubleshooting. See the steps for initial troubleshooting HERE 2. How do I check my connection speed? Verify your connection speed thru Bayantel web speed utility at http://www.pinoydsl.net/viewtopic.php?t=5 3. Why do I have to reset my DSL modem frequently? One reason why you have to reset your modem frequently is that it could be overheating. This causes unstable connection. As an interim action, turn off your modem and let it cool for a little while. Turn it on again and your connection will surely rise to certain amount of speed. Likewise, to correct this problem, keep your modem in a cool place or maybe, put a fan beside it. This approach is usually done to computers as they both contain integrated circuits that easily heat up. 4. My server has a connection but my substations do not. Bayantel DSL support is only limited to a single PC connection or stand alone connection. If other workstations in you local area connection do not have Internet connection, please consult your personal technicians. 5. I have no DSL connection and I am using a router. Bayantel DSL Technical Support does not support routers. If your DSL connection is not working and you have a router connected to it, you must disconnect the router from the DSL modem and connect a computer to the DSL modem then proceed with initial troubleshooting. 6. I have no connection. You may follow the steps for initial trouble shooting. See DSL TROUBLESHOOTING 7. I have done the initial troubleshooting still I cannot access the Internet. Call Bayantel Help Desk Hotline to verify possible network related problem. 8. Why can’t I receive my emails? Verify the configurations of your incoming and outgoing mail server on your favorite email program by using the following. SMTP server (outgoing mail server): mail .skyinet.net POP3 server (incoming mail server): depends on your email domain If the email program is configured properly, try creating an email account on your other email program to verify if the problem exists on your favorite email program. And if on the other email program, you still cannot receive/download, call Bayantel helpdesk hotline to verify if there is any server problem. Note: This guide is taken from Bayantel. Some were editted/added by dslmaster for clarity.