etCaller - Turning Unknown Numbers into Known Colleagues.

Boost your team's efficiency and professionalism. Our app securely and automatically brings your company phonebook to every employee's smartphone.

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+49 176 12345678

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We Support

LDAP

Microsoft Entra ID

Google Workspace

and many more

MDM-Compatible & Secure

Our app integrates seamlessly with leading Mobile Device Management (MDM) solutions – ideal for professional enterprise use. It works on iOS and Android, supports mutual TLS authentication, and Certificate Pinning to secure server communication. This ensures your data remains protected – even on mobile devices.

Cutting-Edge Technology for Your Security

Our app uses both Mutual Authentication and Certificate Pinning to ensure maximum security. With Mutual Authentication, both the client and server mutually authenticate using digital certificates – creating an additional level of trust. Certificate Pinning also effectively protects against Man-in-the-Middle attacks, as the app only communicates with known and explicitly stored server certificates.

Your App in Corporate Design

We tailor the app to match your company’s branding – including colors, logo, and splash screen. etCaller integrates seamlessly with your existing IT landscape and communication strategy.

Everything Your Team Needs

Our app is packed with powerful features that revolutionize internal communication—simple, secure, and efficient.

Real-Time Caller ID

Instantly see the name of the calling colleague before you even pick up. Works even when the app is closed.

Automatic Synchronization

New employees or changed numbers? The app updates automatically, keeping all contacts up-to-date.

Offline Availability

No signal? No problem. All contacts are stored locally and are available anytime, even without an internet connection.

Security & Privacy

GDPR compliant and secure. Company contacts remain strictly separate from private data.

Simple Setup

No complex IT integration needed. Our app is ready for your entire company in just a few minutes.

As Individual as You

Presents both your private device contacts and company contacts in a clear, searchable list.

Perfect for Every Industry

Whether in the field, in the office, or on the construction site – etCaller ensures smooth communication in dynamic teams.

For Consultants & Service Providers

Your employees are at client sites, at home, or traveling. Ensure that a call from headquarters or a project colleague is always recognized. The result: faster decisions and more satisfied clients.

Instantly recognize important calls from project managers.
Clear separation of private and business contacts.
New team members are immediately in the address book.

For Trades & Field Services

Coordination between the office, workshop, and construction site is crucial. When the office calls to communicate a change of plans, that call must be received and identified immediately.

No missed calls from dispatch.
Quick inquiries from colleagues on the construction site.
All supplier and partner contacts always at hand.

Fair Prices for Every Team

Choose the plan that suits you. Simple, transparent, and with no hidden costs.

Starter

Ideal for growing businesses.

€6.000 / Annually

Up to 1000 employees.
All core features
Standard Support

Choose Plan

Business

The best solution for growing teams.

€20.000 / Annually

Up to 5000 users
All core features
Priority email support

Start 14-Day Free Trial

Enterprise

For large organizations with special requirements.

On Request

Unlimited users
All core features
Dedicated account manager

Contact Sales

Book a Demo

Choose a suitable time for a personal and non-binding 30-minute demo.

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About etCaller

Our mission is to make internal communication in companies simpler, faster, and more efficient.

etCaller was born from a simple but widespread problem: important calls from colleagues are missed because their numbers are not saved on their private phones. In an increasingly mobile and flexible working world, this leads to inefficiency, frustration, and missed opportunities.

We are a team of developers and communication experts who believe that technology should work seamlessly in the background to connect people. Our solution is a simple, secure, and GDPR-compliant app that centrally manages the company phonebook and automatically syncs it with all employees' devices. No manual saving, no outdated lists, no mixing of private and business data.

Our goal is to give your team the tools they need for smooth collaboration, so you can focus on what really matters: your business.

Legal Notice

Information pursuant to § 5 TMG:
etCaller Solutions
Postfach 0001
1025 Vienna, Austria

Contact:
Email: contact@mosallem.at

Disclaimer
As a service provider, we are responsible for our own content on these pages in accordance with general laws pursuant to Section 7 (1) of the German Telemedia Act (TMG). According to §§ 8 to 10 TMG, however, we as a service provider are not obliged to monitor transmitted or stored third-party information or to investigate circumstances that indicate illegal activity.