How did you get on the topic of DSL, and what was the rep incorrectly claiming?

It is somewhat my fault for getting on the topic. I have a dry line that I used for SDSL with Northpoint in the past. I asked him to put on the order that I wanted my new line on that pair. When he heard me say DSL, he immediately assumed that I had a Verizon dialtone on that line in the past. I had to convince him that SDSL is not lineshare like ADSL. He eventually took my word for it and agreed. He probably just wanted to end the call.