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CTI & UC applications

Software from estos in action: Diversity and specialization

Get to know the many application options of our software for unified communications and CTI. Find information on the use of our software in specific hardware such as modern IP telephone systems, a hybrid or traditional telephone system or with SIP telephones in the IP Centrex environment, as well as other information to use our products with other software, including leading applications in the field of CRM, ERP and business applications. How to use our software for CTI or UC from the cloud rounds off the applications topic.


Telephone systems

The telephone system is an essential infrastructure component for communication for many businesses. estos software has been developed to create synergies for 'friendly' coexistence with telephone systems and to supplement their functions with professional CTI, but also with modern unified communications functions.

See here which combinations work especially well with estos software and what added value they can provide from their use in specific scenarios.

CTI & UC for telephone system from Auerswald

Remote Office special function

CTI & UC for telephone systems from innovaphone

CTI & UC for telephone systems from Avaya 


SIP telephones are typically used when the telephone system moves to the cloud. In order to be able to use unified communications and CTI functions in this environment, different technical concepts are used compared to classic telephone systems.

estos is a pioneer in the connection of SIP telephones for CTI functions, and in cooperation with the leading telephone manufacturers, has brought groundbreaking concepts to series maturity. See our typical CTI applications with SIP phones from leading manufacturers here.

CTI & UC for Poly IP Telephones

CTI & UC for snom SIP Telephones

Video door intercoms

With a door intercom, you can see directly from your workstation who is waiting outside your company door. This is how you can welcome your visitors before they enter the office. In conjunction with ProCall Enterprise from estos, you can open the door directly by clicking on the PC or by pressing a key combination on the telephone, as well as benefiting from the other advantages of the unified communications & CTI software suite.

Integration with Baudisch Intercom

Integration with Behnke



CRM, ERP and support applications such as SAP Business One and CRM, MS Dynamics CRM, NAV and AX, Salesforce, etc. can be easily integrated into unified communications and CTI solutions with estos software. The optimization of communication-intensive business processes is always in the foreground here. (More about Business Process Integration).

See some practical examples of how they are installed by specialized estos partners:

CTI and TAPI with the Microsoft Dynamics Portfolio (CRM,NAV,AX)

CTI telephony with Step Ahead

CTI telephony with SugarCRM

CTI software & TAPI with Salesforce

CTI Software & TAPI mit SAP Business One

CTI & UC for AkquiseManager

CTI telephony & UC for itacom CRM

CTI telephony & UC for Majesty

CTI telephony for k-advice


Exchange with Microsoft Outlook, HCL Notes and David from Tobit was often referred to as groupware systems for team communication – usually e-mail and calendar functions form the basis. Depending on the system, e-mail, presence, contact, journal and calendar functions can be integrated with ProCall Enterprise.

Get an idea of the CTI application of our software with these systems:

Microsoft Exchange and Outlook

HCL Notes

Industry software

estos partners have specialized in selected industries and offer solutions with our software that have been optimized for a specific occupational group.

See which benefits experts can provide with our software for specific vertical markets (verticals) here.

Tax consultancy:

CTI telephony for DATEV pro users

Customer, service and contact-center:

CTI and UC with TeleSys

CTI and UC with jtel

Event organization:


Service management:


Membership administration:


Internet-based technologies & cloud

Internet-based technologies, the resulting possibilities and the cloud: estos devotes a great deal of attention to these topics. For the cloud, estos offers various software modules that make unified communications and CTI from the cloud possible. As an independent manufacturer, estos can offer service providers flexible, adaptable back-to-back licenses and service level contracts to round off or expand the range of services. Below is a selection of current partners with whom we work in the cloud.


Cooperation with B.I.S.

Cooperation with Firstcom Europe AG (formerly C+TEC AG)

Cooperation with autphone

Cooperation with HFO

Cooperation with QSC

Cooperation with nfon 

Cooperation with byon

Cooperation with STARFACE


Do you have any specific application questions about other providers that are not listed here? If so, we can talk about it together.


Contact us now!


The internet-based technologies developed with WebRTC enable real-time communication directly via the browser. This means that users can already benefit today from uncomplicated audio/video communication without the installation of additional plug-ins or software.

More about WebRTC



Federation enables companies to network securely and successfully with each other and therefore beyond their own company borders with partners, suppliers and customers. This is done on the basis of open standards and secure protocols. For improved communication.

More about federation

Mobile working

To work optimally and safely on the move – this is what more and more employees expect from their company. This often poses a challenge to IT administrators. estos provides practical solutions that take both flexibility and security into account.

More about mobile working