Your business integrated in estos UCC software.
Your system.
Your phone.
Your apps.
Experience seamless connectivity with all your communication and collaboration tools – exactly where you need them. Fully integrated into your CRM, ERP and UCC software, on-premises or cloud-based telephone systems.
We integrate communication into each of your processes
Let's do it together
Connect your telephone system with IT
Integrate your system into the IT infrastructure to control communication from any device. We support the most common on-premises and cloud PBXs.

Integrate SIP phones and add softphones
Make it easy for users to communicate: Make and end calls, consult, switch conferences and set up call forwarding – it’s easy.

Include even video intercom systems
With ProCall, you can welcome visitors via video from any device. Open the door with a click or tap.

Integration of your business processes with estos
Transform your applications into communication-enabled business processes (CEBP) and increase efficiency.
Easily link your estos software with CRM and ERP systems such as SAP, Microsoft Dynamics and Salesforce – and optimize communication-intensive processes.
Find out more about integration into these common applications.
ProCall seamlessly integrates with Microsoft Outlook and HCL Notes and adds e-mail, presence, contacts, journals and calendar functions.
Discover the CTI magic of our software in action with these systems.
"Being able to make calls via softphone client independently of the office phone is a great relief: thanks to ProCall Enterprise, calls no longer have to be forwarded to external devices, employees can be reached via the office number and make calls via this number - regardless of where they are working."
Malte Rudolf, IT Service, Head of IT Infrastructure & Support
"The instructions were self-explanatory and the installation was therefore extremely easy. The estos software runs smoothly and has far exceeded our expectations. Everything is so easy, you could even change telephone providers overnight and ProCall Enterprise just keeps running."
Swen Walter, reference in the IT department

"Making calls directly via the PC, quick and easy access to information on call partners and contacts and the excellent integration into our IT infrastructure are the highlights for us. We use ProCall Enterprise and the MetaDirectory."
Kilian Müller, Head of IT
"With software from estos, integrated into DATEV, we save an enormous amount of time: 1,200 of our employees dial at the click of a mouse, search centrally for contacts and see which colleague can be reached where and how."
Christian Wöger, IT technician
"With estos software, we were able to integrate the home office transparently and enable our employees to interact better and more directly - with each other as well as with customers and suppliers: softphone, presence management and the connection to Dynamics NAV are the highlights for us."
Manfred Gruber, Head of IT

On-premises or cloud or both
UC and CTI heading for the clouds?
By 2030, 30% of UCC will be cloud-based – 60% of companies are investing in this direction (IDC 2022). In our top-tier partner network, estos is a leader in cloud technology and offers UC and CTI solutions for private, public and hybrid clouds.
Scalability
On-premises suits you better? We got you covered.
Whether you are an SME or a large company – our UC software and CTI solutions are tailored precisely to your needs and offer the perfect service level for you.