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ADSL: Asymetrical Digital Subscriber Line

Dial-up Analog Modems once ideal for individual home users are quickly becoming a cumbersome, outdated technology. Though relatively inexpensive and widely available, the long 'dial-in' process, slow transmission speeds, and dropped connections are sending residential users looking elsewhere from frustration.

Dial-up connections are not reliable for a business and not suitable for a LAN. Analog modems are not designed to handle the communications of a business LAN, and should be used only in the rare cases when no other technology is available or as a backup to another service.

Internet access as provided by the Cable and Telephone companies currently provide services called ADSL which is commonly abbreviated to DSL. ADSL is non-symmetrical in that the download and upload speeds are not the same. While this service is cost effective and suitable for some small businesses and many residential customers, it does not address the needs of those subscribers that use the Internet as a major component of their business or participate in online gaming. 

Cable modems connect via the cable TV network connection in a residence. By working on a shared network (which means speed is determined by the number of active users on the network) cable modems eliminate the dial-in process and offer "always on connectivity". Theoretical maximum speed is limited by the Ethernet board at 10Mbps. However, actual maximum speed is typically 1-3Mbps. Cable connectivity suffers from security holes and is unsuitable for hosting servers. Therefore, cable connectivity is generally not a viable business solution."

Telephone ADSL while eliminating the security concerns associated with cable modems is still not adequate for most business models due to the small 192K- 384Kbps and inconsistant upload speeds. To provide high quality VioP telephone service requires consistant upload speeds capable of supporting 90 Kbps per telephone line plus enough overhead bandwidth to continue to have usable Internet connectivity for other PC users. Most Telephone ADSL lines also incorporate Rapid Bandwidth Allocation (RBA). Since most ADSL subscribers are residential or small office/home office surfing the Internet, it is important that web pages load very quickly. To maximize the use of available bandwidth, many service providers will initiate the down load at the maximum subscribed speed then trend the speed downward as the file or page download progresses. This may appease the casual subscriber looking for Internet access at a low cost, but it is very detrimental to businesses that need consistant service to conduct business operations. 


ADSL is a good solution for the residential user who wants high speed Internet connectivity but doesn't want the expense of additional phone lines. ADSL offers high speed connections, voice and data on the same line at the same time, a constant connection without dialing in and affordability.

Our system does not have the limitations of Telco ADSL service or the security concerns of Cable ADSL service. Our system is built on the SDSL model and is designed for businesses that need reliable access to support their business operations.