Sign of the times
AT&T Inc., Verizon Wireless, and T-Mobile USA Inc., three of the top four US mobile phone carriers, revealed flat-rate subscriptions for unlimited wireless calls, intensifying pressure on Sprint Nextel Corp.
Verizon Wireless parent Verizon Communications Inc. fell the most in almost six years in New York trading after the mobile carrier disclosed a plan to give users unlimited calling time for $99.99 a month. AT&T unveiled an identical service, and T-Mobile offered unlimited text messages and calls for the same price.
Cellphone firms offer flat-rate call plans - The Boston Globe
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