Internet Telephony Service Provider for SIP Trunk, Cloud PBX & UCaaS

Reliable business VoIP solutions for companies worldwide—from scalable cloud phone systems to secure SIP trunking and MS Teams telephony integration.

Enterprise VoIP team meeting: Powerful cloud PBX and reliable SIP trunk solutions for businesses – connected, flexible and globally accessible.

99.9% uptime

Business availability

Global reach

with local phone numbers in key markets

24/7 Support

Dedicated support

Europe Hosting

Redundant data centers

Cloud-Telefonie

Virtual-Call – Your partner for professional VoIP solutions worldwide

Virtual-Call delivers tailored VoIP solutions for growing businesses around the globe. From cloud PBX platforms to enterprise-grade SIP trunks and MS Teams integration, our services scale seamlessly with your international communication needs.

Our VoIP solutions for modern businesses

Choose the optimal telephony infrastructure for your organization, whether you are a growing startup or an established enterprise with multiple locations.

Cloud PBX Business

Complete cloud-based business phone system with advanced features and no on‑site hardware required.

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SIP Trunk Business

Premium SIP connections for existing phone systems and larger infrastructures, designed for high reliability and global reach.

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Switch to cloud telephony in 3 easy steps

Your switch to cloud telephony is effortless and saves resources. Our step-by-step approach guides you through a simple switching process.

1. Personalized advice

We will advise you personally and create a tailor-made offer for your Swiss company.

2. Receive access to data

You receive all the necessary access and configuration data for centralized management of your telecommunications solution.

3. Start your communication

Configure your end devices and benefit from the comprehensive advantages of an advanced, cloud-based telephony solution.

Manage your telephony centrally and efficiently

Improve your communication with your business

Business Cloud PBX

The Business Cloud PBX Phone System is a business communication solution that offers companies of all sizes a complete package for phone system, call center, omnichannel messaging, and more, out of the box. It has inbuilt visual call management, integrated video conferencing, and advanced contact center features.

  • Full list of PBX features: IVR, voicemail, call recording, and more
  • Easy-to-use Soft UC Clients for Android, iOS, Windows, macOS, and web
  • Team chat with presence and file sharing
  • Intuitive call operator panel for drag-and-drop call management
  • Call Center features, wallboard, queue panel, skills-based routing, and many more
  • Omnichannel messaging with WhatsApp and SMS integration
  • Rich integrations with popular CRMs and helpdesks
  • Support bulk auto-provisioning of SIP endpoints

The optimal solution for your telephone system

Business SIP Trunk

Optimize your existing IP telephony with Virtual-Call's SIP trunk, which offers a high-quality, scalable and cost-effective solution for businesses. Our SIP trunk simplifies your business communications by allowing you to achieve unrivaled call quality and reliability, both for national and international calls. Our SIP trunk is certified for Unify (Mitel), Starface, Agfeo and Live-Agent telephone systems and can easily be used with 3CX and other systems.

  • Excellent call quality: Enjoy crystal clear voice quality for all your calls.
  • Reduce your telephony costs: Compared to traditional telephony systems.
  • Easy integration: Integrate the SIP trunk seamlessly into your existing systems.
  • Reliability: Benefit from a stable and reliable connection.
  • Flexibility: Take advantage of a flexible and customizable solution.
  • Support for emergency numbers: Ensure that your employees have access to emergency services.
SIP trunking features of Virtual-Call
What is a SIP Trunk and how does it work?

More services for cloud telephony

Additional Products and Services

Discover the advantages of cloud telephony and enhance your communication options by utilizing our supplementary products and services. Take full advantage of the flexibility and cost savings of cloud telephony to improve your business communications. Take advantage of our expertise and explore the possibilities of cloud telephony.

SMS Termination for Businesses - Direct. Fast. Secure | Virtual-Call

Outstanding SMS Termination Services

Experience the highest quality with our SMS termination services for businesses needing to send large volumes of messages. Our services assure reliable, fast, and secure delivery to reach your customers at the right moment. Click here to learn more.

Learn More about our Outstanding SMS Termination Services.
NEW!
MS Teams Direct Routing for Cloud PBX and SIP Trunk is the perfect combination.

MS Teams Direct Routing

Looking for a straightforward way to make and receive calls with Microsoft Teams? Microsoft Teams Direct Routing is our product answer for Cloud PBX and SIP Trunk, without the need for a dedicated SBC. Fully automated with our virtual assistant, it's easy to get started with Direct Routing.

More about our MS Teams Direct Routing
Wholesale VoIP and SMS Termination

Wholesale service

Improve your VoIP services with Virtual-Calls Wholesale VoIP termination. VoIP termination is the ideal solution for providers looking to deliver exceptional VoIP services with premium call quality to their end users. Virtual-Call, your reliable provider, provides comprehensive Wholesale VoIP termination services across multiple countries.

More about our voip wholesale services

Modern business communication

Innovative, economical and flexible

Virtual-Call modernizes business telephony and helps companies communicate more efficiently across locations and time zones. With our cloud-based solutions, you manage all calls centrally, stay flexible, and achieve measurable savings in your communication costs.

  • Up to 40% cost savings – compared to traditional on‑premise phone systems
  • No hardware investments – ready for immediate use from the cloud
  • Scalable as needed – easily adapts to new sites and users
  • Professional features – enterprise-grade functionality for any business size
Modern business communication for SMEs
Global customer loyalty and flexible use

Connected everywhere with Virtual Call

Experience boundless communication

The Virtual-Call cloud phone system enables your teams to stay reachable from any location with a stable internet connection. Whether in the office, working remotely, or traveling, employees can use the same business number and deliver consistent service quality to customers worldwide.

  • Work from anywhere – office, home office, or on the go
  • Single business number – consistent professional presence across all devices
  • Mobile and desktop apps – your office phone travels with you
  • Ideal for hybrid work – designed for flexible and distributed teams

Why Virtual Call for your company?

Tangible benefits and measurable results for demanding business customers.

Proven expertise & compliance

Over 11 years of VoIP experience for SMEs and enterprises in various industries. Certified data centers and standards‑based data protection ensure secure handling of your communication data.

Measurable ROI results

On average up to 35% reduction in telephony and infrastructure costs. Typical ROI after just a few months thanks to streamlined processes, centralized management and the elimination of legacy hardware.

Guaranteed performance

99.9% SLA with clearly defined response and resolution times. Redundant data center infrastructure and proactive monitoring provide maximum reliability for your business‑critical voice services.

Proven in companies of all sizes

5-50

Employees
Growing teams

50-200

Employees
Medium-sized companies

200-500

Employees
Large companies

500+

Employees
Enterprise & Groups

Business features for professional requirements

Functions that support growing SMEs and enterprises worldwide.

Dedicated account management

Personal point of contact for organizations with higher telephony requirements. Proactive support and strategic guidance for your voice and collaboration infrastructure.

Advanced analytics & reporting

Detailed insights into call volumes, quality, costs and performance. Data exports and API access for integration into existing BI and monitoring systems.

Multi-site management

Central administration of all locations and users from a single platform. Unified extension plans and consistent numbering concepts across countries.

Disaster recovery & redundancy

Automatic failover between data centers to keep services running. Geo‑redundant design ensures business continuity in the event of outages.

Business security & compliance

Standards‑based data protection, encrypted transmission and certified data centers. Regular security reviews support compliance with international regulations.

API & integration

Full REST API for integration with CRM, ERP and other business applications. Webhooks and automation options for real‑time workflows and provisioning.

What our SME customers say

Success stories of Swiss companies

Thanks to the mobile app, our employees can take calls both in the office and when working from home. Setting up new devices was child's play.

Dominik Tschochner from KMU Trexpert AG
— Dominik Tschochner
Managing Director KMU Trexpert AG

The virtual switchboard offers us flexibility and independence at significantly lower costs. We are very satisfied with the technical solution and the service.

Jörg Rust, Webworker Company GmbH
— Jörg Rust

First-class advice and a good connection. As an international company based in Switzerland, we appreciate the local telephone numbers and low costs.

Intervilla
— Urs Pavoni

Companies, that trust the cloud telephony from Virtual-Call

Trust the specialized VoIP partner for SMEs

AI

KI-Features
Text-to-Speech, Speech-to-Text

99.9%

Availability
Enterprise SLA guaranteed

11+

Years of experience
with SMEs and companies

3

Redundant EU
data centers (Frankfurt)

Telephony solutions from the cloud

As a leading communications service provider, we are committed to delivering customized solutions that meet the unique needs of your business. Our cloud telephony solutions provide a range of features including flexibility, scalability, and quality, thereby guaranteeing seamless communication.

Rely on Virtual-Call to connect your business. Contact us today to learn more about our high-quality cloud telephony solutions and wholesale voice and SMS termination services. Together, we will find the best solution for your business.

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SMS-Termination

For high volume

Premium SMS termination for your marketing campaigns. Our SMS Termination Service is ideal for companies in Switzerland with high monthly message volumes.

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