Now that the US government has moved to block its merger with T-Mobile, AT&T is gearing up for a long and potentially pricey legal battle with the Department of Justice. According to Reuters, however, the provider is also working on a settlement offer, in the hopes of bypassing the courtroom altogether. Sources close to the matter say AT&T will soon present its proposal to antitrust regulators, who are concerned that the company's purchase of T-Mobile may hinder market competition. Details on the proposal remain vague, though it will likely include promises to keep T-Mobile's low-cost data and calling plans, along with pledges to sell off some of its own assets. But some insiders say the carrier may have to sell up to 25 percent of T-Mobile's business in order to put regulators' minds at ease. AT&T has yet to comment on the report, though one of Reuters' sources claims that its lawyers are "pretty determined that they can find a solution, and they are pretty confident."