Primus Unit to Pay \$400,000 in Do-Not-Call Probe A division of Primus Telecommunications Group Inc. agreed Tuesday to pay \$400,000 to the federal government to settle allegations that the McLean phone provider made telemarketing calls in violation of the national do-not-call registry. &lt;FONT face="verdana,MS Sans Serif,arial,helvetica" size="-2" color="#666666"&gt;&lt;B&gt;-The Washington Post&lt;/b&gt;&lt;/font&gt;