The commission estimated that the savings would be worth about $2 a month to the average long-distance customer.
Traditionally, long-distance customers have paid for calls by the minute.
It now controls 81 percent of long-distance customers and more than 95 percent in local service, where independent companies arrived just last year.
Some 500 companies are fighting for long-distance customers.
Complaints from long-distance customers who are footing the bill have dwindled.
It might turn out that the Universal card attracts more long-distance customers.
All the rule changes would affect large long-distance customers like corporations, universities and state governments.
It now controls 81 percent of long-distance customers, up from a low around 70 percent.
Besides being tarnished by scandal, now they've raised rates for long-distance customers three times in the last few months.
The breakup ended subsidies of local service by long-distance customers.