Have you heard the term "Wireless Substitution?" It’s the technical way of referring to the act of dropping one’s landline and going totally wireless. In radio jargon, we know at as "Cell Phone Only." A new study by Telephia now breaks down the percent of "wireless substitution" in the Top 20 markets – and there are surprises. While you might think that a tech savvy market like San Francisco would be near the top of the list, it turns out they’re at the bottom (with just 5.5% wireless-only). Instead,...
