Some are paying more than they did with calling plans that charge by the minute.
You can also call your plan if you have questions.
More than 100 staff members had signed a letter calling the plan "offensive."
A homeless man who is a plaintiff in the suit against the city called the new plan a positive step.
"It has been called the most aggressive plan in the nation, short of creating chaos, which we mustn't do," she said.
Tell me, does your plan ultimately call for making this treatment available to everyone, to the masses?
"Just by calling and changing the plan, you're able to change being late to being on time."
Some carriers say they will match calling plans and options to meet the needs of individual customers.
Teenagers have also shown concern about cost - both of phones and calling plans.
One called the plan to seize her bus Saturday "insane."