Boosting station?

Hi, Julie,
what is the meaning of “boosting station”?
Context here: “The boosting station,” the operator added, “is in the 202 area code. But we have no number yet.”

“Boosting” means to give something a little extra help. For example, a booster chair is for a child to sit on when they’re not quite tall enough to reach the table. A boosting station is a phone tower that gives extra power to the regular phone equipment.