A beefed up AT&T unveiled a new unlimited calling plan it hopes will quell cable’s VoIP growth. The "AT&T Unity" plan begins Sun offering subs free domestic calls to/from any AT&T wireless and wireline phone numbers. The telco dubs it "a calling community of more than 100mln." Residential and business subs would qualify for the plan, which will run at least $110/month, if they order a bundling of AT&T wireless service and unlimited local and long distance wireline services. The plan represents the 1st major move by AT&T toward the sharp wireless focus mentioned earlier this month by chmn CEO Edward Whitacre (Cfax, 1/3). — DirecTV added Azteca America’s WBWT-38 to its local broadcast channel lineup in Milwaukee.