RingRevenue, which offers a call performance platform that allows companies to complement their marketing efforts with phone-based campaigns, has raised $4 million more in a round led by led by GRP Partners and Rincon Venture Partners, bringing its total financing to $7.5 million. Call performance marketing basically extends the tracking, measurement and accountability of online performance marketing to those transactions that occur over the phone.

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China Chow Chloë Sevigny Christina Aguilera