WASHINGTON, Jan 2 (Reuters) - U.S. regulators and XCast Labs have agreed on a proposed settlement of charges that the company facilitated billions of illegal robocalls, the Federal Trade Commission (FTC) said on Tuesday.

The FTC also ordered the Voice over Internet Protocol (VoIP) provider to pay a $10 million civil penalty but suspended the fine “based on its inability to pay,” it said in a statement.

The penalty will be due immediately if XCast “misrepresented its financial condition,” and XCast must cut ties with firms that do not follow telemarketing rules, it added...