New: ECSTA middleware from estos for the Avaya IP Office series

Connecting unified communications software to multiple telephone systems simultaneously

New: ECSTA middleware from estos for the Avaya IP Office series

Control phone calls with the PC: ECSTA connects the PBX with the UC software ProCall Enterprise

Starnberg, 18/7/2019

The new middleware ECSTA from estos is now available for the Avaya IP Office series: The middleware connects the UC software ProCall Enterprise with one or more of the corresponding telephone systems. The advantage: The administrator only has to install and set up the UC software once. It then connects them via ECSTA to any number of PBX telephone systems at one or more locations. “In technical terms this means ‘multiple instantiation’,” adds Bernd Kattner, Product Manager at estos.

The Starnberg-based software manufacturer offers a series of ECSTA middleware drivers: These enable communication between the ProCall Enterprise UC software and various PBXs from different manufacturers by converting the CSTA PBX protocol to the Microsoft TAPI standard. Users can control their phone with their PC, for example, start or accept a call, forward or end a call. You receive information about callers onscreen and can switch directly to the corresponding contact in the CRM or ERP system. In addition to computer telephony, ProCall Enterprise offers integration functions for unified communications and collaboration: audio/video communication, instant messaging, screen sharing and presence management.

Requirements and further information

The ECSTA from estos for Avaya IP Office supports all system versions from Release 10.1. The prerequisite for use is an activated Avaya one-X portal and a free license for “CTI Link Pro”. Further information is available at

estos GmbH is an independent manufacturer of innovative building blocks for unified communications. Since 1997, estos has been developing professional standards software for small and medium-sized companies, thereby improving their business processes in communication-intensive areas. As a technology leader, estos has demonstrated its expertise in the area of Computer Telephony Integration (CTI), Unified Messaging Software (UMS), SIP, XMPP, LDAP and WebRTC-based applications that enable uncomplicated audio/video communication. estos has constantly invested in research and development helping to create innovation and ensuring their products are the forefront of genuine trend-setting technology. The core markets of the company are Germany, Austria, Switzerland, Benelux and Italy. estos GmbH is headquartered in Starnberg, close to Munich, and operates a Knowledge Center Messaging in Olching, a development office in Leonberg, an office in Berlin and branches in Udine, Italy and Doetinchem, in the Netherlands.

estos GmbH
Sibylle Klein
Ilzweg 7
82140 Olching
+49 8142 4799 27