Verizon Wireless has added to its push-to-talk capabilities with the introduction of two phones that mark the company's first foray into mixing VoIP with CDMA 1x EV-DO Rev. A technologies. The Motorola-built PTT solution -- equipped on Motorola's Adventure V750 model and the G'zOne Boulder -- features quicker call setup and increased call capacity amid other upgrades, Verizon Wireless said.

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