Thank you, Matt, and good morning, everyone. I'm Jim Mathias and I'd like to welcome you to our fourth quarter and year end 2012 conference call. Speakers with me this morning are: Roger Linquist, our Chairman and Chief Executive Officer; Tom Keys, our President and Chief Operating Officer; and Braxton Carter, our Vice Chairman and Chief Financial Officer. The format for today's call is a follows. First, Roger will provide an overview of our business. Tom will then provide an update on a number of operational results and initiatives. And finally, Braxton will review the financial highlights of the fourth quarter and year end of 2012, followed by a question-and-answer session. During today's call, we will refer to certain non-GAAP financial measures. We have reconciled these historical non-GAAP measures to GAAP measures in our earnings release, which is available at www.metropcs.com under the Investor Relations section. Before I turn the call over to Roger, I want to remind you that certain information that we will discuss on this conference call may constitute forward-looking statements within the meaning of the Federal Securities laws. Forward-looking statements or any statements not of historical fact involve risk, assumptions and uncertainties that may not occur or could cause actual results or the timing of events to materially differ from those made in the forward-looking statements. Words such as believe, anticipates, expects, intends, plans, should, could, would, view, estimates, projects, will and other similar expressions typically identify these forward-looking statements. Forward-looking statements include, but are not limited to, the statements we make regarding our future operational and financial plans, our estimates, capital expenditures, our prospects for success, our beliefs, our strategies and our positioning in the highly competitive wireless industry. Furthermore, included in our forward-looking statements are statements regarding our competitive positioning and promotional strategies, continued growth of the no contracts space, the advantages of and our plans with respect to 4G LTE, the growth and expansion of 4G LTE worldwide and development of the 4G ecosystem, the availability of 4G LTE handsets and their costs, reductions in cost to provide data services, consumer demand for data, and capacity of our 4G LTE network and timing of 4G wireless for all, the projected cost savings, expected future benefits and synergies of the proposed business combination with T-Mobile, our ability to reduce churn and increase margin, manageability of our debt maturities, our positioning from a balance sheet perspective, capital expenditure guidance and other statements, which are not historical. Management may make additional forward-looking statements in response to questions. Additionally, our forward-looking statements are subject to a number of risks, many of which are beyond our control, including but not limited to, the competitive environment, our proposed business combination with T-Mobile, delays in income tax refunds and the other risk factors described in our earnings release and our annual report on Form 10-K, quarterly reports on Form 10-Q, including our 10-Q for the third quarter ended September 30, 2012, our 10-K for the period ended December 31, 2012, which we will file, and current reports on Form 8-K, copies of which can be obtained free of charge from the SEC at www.sec.gov or from the Investor Relations section located under the About Us tab on our website or directly from contacting the Investor Relations department. We encourage you to review these documents. We have also provided supplemental slides that are available for download and printing on our Investor Relations website. We may refer to these slides during our prepared remarks and in response to questions. We would also like to draw your attention to the Safe Harbor statement in such slides as it provides additional information on our forward-looking statements. I'd like to remind you that the results for the fourth quarter and full year 2012 may not be reflective of results for any subsequent periods. For anyone listening to a taped or webcast replay or a written transcript of today's call, please note that all information presented is current and should be considered valid only as of February 26, 2013, regardless of the date reviewed, read or replayed. MetroPCS disclaims any intention or obligation to revise or update any forward-looking statements, whether as a result of new information, future events or developments or otherwise, except as required by law. The company does not plan to update or reaffirm guidance, except through formal public disclosure pursuant to regulation entity. Certain terms that are used in today's call are registered trademarks of MetroPCS. We intend to file our annual report on Form 10-K for the period ended December 31, 2012, with the SEC by March 1. And at this time, I'd like to turn the call over to our Chairman and Chief Executive Officer, Roger Linquist.