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CallOne delivers individual all-in-one solutions for the business telephony of agile companies. It delivers quality components that make sales and customer service as good as never before. From statistics, phone numbers, and telephones to connections to CRM systems, sales tools, and help desks, to personal expert advice. It offers tailor-made solutions for the entire enterprise that blends seamlessly with business processes and business solutions. It was founded in 2010 and is headquartered in Berlin, Germany.
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