Zingy and Nextel go polyphonic:

Polyphonic ring-tones are richer, fuller sounding compositions than traditional monophonic ring-tones — the jingles that play on cellphones.

Zingy will offer hundreds of new polyphonic song titles to Nextel subscribers who use the Motorola handsets, allowing wireless users to personalize the sound of their phones.

"Polyphonic ring tones give our customers' phones a sophisticated and personalized sound," said Eileen Mercilliott, director of product management at Nextel. "Nextel users are successful and professional, but still value features that allow them to show a bit of personality in their communications."