Typically, upload speed is lower than download speed for Asymmetric Digital Subscriber Line (ADSL) and equal to download speed for the rarer Symmetric Digital Subscriber Line (SDSL).
http://en.wikipedia.org/wiki/DSL

ADSL (Asymmetric Digital Subscriber Line) It works by splitting your existing telephone line signal into two, one for voice and the other ...
http://www.gcronline.com/adsl&sdsl.htm

ADSL / SDSL. Opal's business-only DSL products provide you with secure, dedicated high-speed internet access not only for your main office, but also for remote sites or branches ...
http://www.opal-solutions.com/products/connectivity/adsl-sdsl/

IT-Unlimited is a talented dynamic company that is renowned for its alternative thinking. Spanning over different market sectors IT-Unlimited thinks outside the box. Our ...
http://www.it-unlimited.net/adsl.php

Our Network Are you a small business that requires an affordable ADSL or T1 line? A large company requiring multiple locations that need to be linked together, all on a ...
http://sdslreports.com

SDSL high-speed internet connection for businesses and homeworkers with a 2.5:1 connection ratio where most other companies offer a 20:1 ratio.
http://www.hbtcommunications.com/adsl/sdsl.htm

ADSL offers unequal throughput speeds of up to 1.54 Mbps downstream from the carrier (download) and up to 384 kbps upstream (upload), while SDSL delivers equal speed increments ...
http://www.bandwidth.com/wiki/article/ADSL_%26_SDSL

ADSL, SDSL, VDSL, IDSL, help! too many acronyms! DSL FAQ frequently asked question. ... Right now, your choice is probably going to be either SDSL or ADSL. ADSL is generally ...
http://www.dslreports.com/faq/134

EDPnet is an independant Internet provider. Check out our internet access products (Dial-up, ADSL, ADSL2+, SDSL, ...), hosting offerings (shared hosting, dedicated hosting ...
http://www.edpnet.net/?PartnerID=37384

... ADSL Max 6 Fix; ADSL Max 12 Fix ADSL Max 24 Fix Temporary ADSL; Transfer to EDPnet; Moving; SDSL; Dsl-hardware; ADSL without telephone line: ADSL Max without a Belgacom telephone line? ...
http://www.edpnet.net/?CC=be&LC=nl&PartnerID=371&S=ADSLMax24dyn

Browsing the web and e-mail communication are two essentials for business operations these days. But you do not need an Internet Connection for each member of your company.
http://www.c-gate.com/adslsdsl.php

This means fast upload speeds of up to 2Mb; 8 x faster than standard ADSL (256Kb). DualStream® SDSL from Spitfire combines our LLU Stream SDSL (Primary Circuit) with an IPStream ...
http://www.spitfire.co.uk/sdsl.html

Maintaining a close relationship with our partner Zen Internet, Computime can offer a reliable, fast and cost effective broadband solution.
http://www.computime.co.uk/content/broadband_adsl_sdsl

Capitalising on the industry's investment in Local Loop Unbundling (LLU), Adapt provides a range of high performance SDSL and ADSL services appropriate for accessing the Internet ...
http://www.adaptplc.com/services/internet/adsl-sdsl/

What is SDSL? The SDSL service does not operate on a telephone line like the ADSL, it operates on a local loop between your premises and the exchange ...
http://www.gloryegypt.net/sdsl.htm

Need sometime better than ADSL? SDSL ensures an uncontented connection, with the same upload and download speeds. Fantastic for VPN Networks between sites or those who require a ...
http://www.hostingsystems.co.uk/connectivityandadsl.asp

hi all.....     LeaseWeb offers ADSL/SDSL at very competitive prices. ADSL is ideally suited for consumers and businesses who mostly generate data traffic from the Internet to ...
http://forums.microsoft.com/SamVaad/ShowPost.aspx?PostID=2420376&SiteID=43

ADSL / SDSL. Through our partnerships with some of the major ISP's we are able to supply and install reliable business-grade DSL services for our clients.
http://www.computer-support-essex.co.uk/adsl-sdsl-essex.html

DSL Line Service, ADSL, SDSL, IDSL, HDSL, VDSL, and WDSL check availability ... Are you seeking a DSL Line, DSL Service, ADSL, HDSL, SDSL, or IDSL Connectivity?
http://www.nationwidebandwidth.com/dsl.html

Trilogy Broadband provides home and business broadband services to many Cambridgeshire villages ... Welcome to Trilogy Broadband. Trilogy are a local loop unbundled telecoms ...
http://www.trilogytelecom.co.uk/