Cingular is enhancing the way businesses and consumers communicate as it introduces a next generation Push to Talk (PTT) service. The service will operate across the largest Push to Talk coverage area in America, and brings a host of new, unmatched features including: - Availability - unique icons allow Cingular PTT users to see if other PTT customers are available before making a PTT call. - Quick Group Calling - allows users to select individuals from their contacts and instantly place a...

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