Other plans call for shuttering three manufacturing facilities and focusing on the company’s Lumia line of Windows-based phones, which have received good review. According to Canaccord Genuity analysts in a June 5 research note, the Lumia 900 was the second best selling phone at AT&T during April and May, behind Apple’s iPhone 4S. However, during those months, Nokia was the fifth best selling smartphone maker, behind Apple, Samsung, Motorola Mobility and HTC.