Estimates suggest that AT&T, Verizon, Qwest and Embarq collectively lose around 2.6 million landline customers per quarter. One technician that has worked with Embarq tells me that internal estimates peg their landline customer losses at around 2,000 per day. The baby bells issue their latest earnings results next week, and that bloodshed is expected to continue as users migrate to cable VoIP or cell only.Broadband additions aren't offsetting the losses; DSL additions have slowed substantially as the market becomes saturated and the fight shifts toward retaining existing customers with long-term contracts. Fortunately, business is booming in the wireless sector. Verizon today was sure to leak word that they'd added 1.5 million subscribers this quarter. As usual, Qwest could be hit the hardest given they lack their own wireless operations.