Calling 411 for directory assistance can be maddeningly expensive. Carriers like Sprint and Verizon charge more than $1 and sometimes as much as $2 a call from a cell phone. And much of that is profit ...

A competitor to free phone directory assistance services offered by Microsoft and Google, Menlo Park’s Jingle Networks runs 1-800-Free-411, one of the most popular in the category. We’ve written about ...