Since 1997, ESTOS GmbH has been developing and selling innovative standard software and today is a leading supplier of Unified Communications products. CTI and SIP-based solutions are used for the optimization of the workflow in communication intensive departments. Today, more than 200,000 customers as well as numerous strategic technology partners and resellers in Europe profit from ESTOS’ know-how. The independent manufacturer is Microsoft Gold Certified partner, which has its company headquarters in Starnberg near Munich.