Enterprise? Interoperability? T-Mobile is planning an event in New York and the only bit of information it is sharing about the invite-only occasion is that  it's "a real piece of work."

The self-described disruptor of the wireless industry leads the way in data stashing, or rollover data, prompting rivals to follow suit. And if the UnCarrier event's new service and revelations are anything to go by, it appears T-Mobile is preparing to innovate in some form once again.

T-Mobile's latest event is scheduled for 1 p.m. on March 18 at Spring Studios in Manhattan.

"T-Mobile is rewriting the rules of wireless again! You don't want to miss it," states the invite.

For those attempting to figure out what T-Mobile is planning, they'll need to think like an "Un-Carrier." T-Mobile prides itself in making moves that aren't characteristic of typical wireless carriers--efforts it says places customers above the bottom line.

In a previous "un-carrier" move, T-Mobile ended the practice of holding back the best deals from customers wit less than stellar credit. Calling the move "smartphone equality," T-Mobile says it now, regardless of credit scores, all customers are eligible for the best phones at the best prices.

"Last year, the carriers spent billions advertising deals and plans that half of Americans can't get when signing up for wireless service. That's complete BS," said T-Mobile CEO John Legere. "We've created a better way with Smartphone Equality. Beginning now, your relationship with us counts more than your credit score - which means absolutely everyone can get the hottest smartphones at the best prices."

T-Mobile is coming off of a strong quarter, reporting the addition of 1.3 million branded postpaid customers. It says the figure tops the U.S. wireless industry.

The wireless carrier's services revenues were up by about 13.6 percent, year over year, in Q4 of its 2014 fiscal year. Its total revenues were up by approximately 19.4 percent, year over year, for the same quarter.

"2014 was the best year of growth in company history," said Legere. "Our Un-carrier moves helped us blow away the competition. The best is yet to come as the future looks bright in 2015."

For 2015, T-Mobile is aiming for between 2.2 million and 3.2 million branded postpaid additions. It is targeting between $6.8 billion and $7.2 billion in earnings before interest, taxes, depreciation and amortization.

Graphic: T-Mobile

Photo: Angela Weiss | Getty