The Samsung Z400 has a durable, functional design and a satisfying feature set. It's a good performer, too. Though Sprint Nextel has been a combined company for three years, the
carrier has pursued a rather circuitous post-merger strategy. At first,
the carrier said it would move all voice calls to Sprint's
CDMA technology, while keeping Nextel's iDEN network for push-to-talk
communication. But when customers failed to catch on to the dual-mode CDMA/iDEN phones,
Sprint had a problem. Its CDMA customers were left without access to a
PTT network, particularly after the carrier decided to retire its former
ReadyLink service. Since that situation suited no one, Sprint developed
QChat as a solution.
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