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Cantor Fitzgerald Upgrades Sonus Networks (SONS) to Buy Jan 7, 2010 07:23AM
Cantor Fitzgerald Maintains a 'Hold' rating on Sonus Networks (SONS), Cuts Price Target and Estimates Nov 7, 2008 09:52AM
Cantor Fitzgerald Downgrades Sonus Networks (SONS) to Hold Aug 12, 2008 09:09AM
Cantor Fitzgerald Upgrades Sonus Networks (SONS) to Buy Jan 24, 2008 08:41AM