By A Mystery Man Writer
Communications in Iran - Wikipedia
Why Facebook makes us worse but Wikipedia makes us better
ADSL - Wikipedia
Asymmetric Digital Subscriber Line - Computing and Software Wiki
Wikipedia has begun its annual fundraising drive
What is DSL internet? - Quora
Where can I get a DSL cable cord? - Quora
Rate-Adaptive Digital Subscriber Line
How to Get Your Brand in Google's Knowledge Graph Without Wikipedia
Why is my ADSL working, but there is no dial tone on the phone line? - Quora
How to find out if you have ADSL or VDSL - Quora
G.992.1 - Wikipedia
Telephone exchange - Wikipedia