--- title: Virtual-Call Blog | Business Communications & VoIP description: Insights on Cloud PBX, SIP Trunking, Microsoft Teams and wholesale voice for organisations operating across locations and markets. image: https://www.virtual-call.net/hubfs/webcontent/virtual-call-communication-service-provider.webp --- [Skip to content](https://www.virtual-call.net#main-content) - [Become a partner](https://www.virtual-call.net/become-a-partner) - [My Login](https://my.virtual-call.net) - [Support](https://support.virtual-call.com) [![Virtual-Call your Communication Service Provider](https://www.virtual-call.net/hs-fs/hubfs/VC%20Logo/New/vcall_logo_transparent_white_840x252.png?width=840&height=252&name=vcall_logo_transparent_white_840x252.png) ![Virtual-Call your Communication Service Provider](https://www.virtual-call.net/hs-fs/hubfs/VC%20Logo/New/vcall_logo_400x120.jpg?width=400&height=120&name=vcall_logo_400x120.jpg)](https://www.virtual-call.net) - [English](https://www.virtual-call.net) - [Deutsch](https://www.virtual-call.net/de/) - [Português - Brasil](https://www.virtual-call.net/pt-br/) - [Home](https://www.virtual-call.net) - Cloud Products - [Cloud PBX](https://www.virtual-call.com/cloud-pbx) - [SIP Trunk](https://www.virtual-call.com/sip-trunking) - [MS Teams Direct Routing](https://www.virtual-call.com/microsoft-teams-direct-routing) - [Wholesale](https://www.virtual-call.com/wholesale) - [About us](https://www.virtual-call.net/about-us) - [Blog](https://www.virtual-call.net/blog) # Business communications for companies operating across locations and markets   Virtual-Call is a Swiss communication service provider for organisations with national and international communication requirements. We connect Cloud PBX, SIP Trunking, Microsoft Teams telephony, and professional voice services with the infrastructure each operation requires. ![Hero Banner](https://www.virtual-call.net/hubfs/webcontent/virtual-call-communication-service-provider-large.webp)   ### One communication structure for different markets Companies with offices, teams, or customers in different countries should not have to manage telephony as isolated systems in every market. Virtual-Call connects communication services with your operational requirements, helping coordinate users, locations, and technical needs across different markets. ![Integrated business communications across multiple locations](https://www.virtual-call.net/hs-fs/hubfs/AI-Generated%20Media/Images/Cloud%20PBX%20Call%20Center%20Dashboard%20Ecosystem.png?width=1662&height=946&name=Cloud%20PBX%20Call%20Center%20Dashboard%20Ecosystem.png)   ### Cloud PBX **Manage users, phone numbers, and locations from one cloud-based business phone system.** Unified communications, integrations, mobility, call management, and advanced features help IT teams manage business telephony without relying on a local PBX at every location. [Explore Cloud PBX](https://www.virtual-call.com/cloud-pbx) ![Cloud PBX for centralised business telephony management](https://www.virtual-call.net/hubfs/cloud-pbx-dashboard-hotel-staff-en.webp)     ### SIP Trunking **Modernise voice connectivity without necessarily replacing your existing PBX.** Plan simultaneous calls around actual capacity requirements, connect compatible telephony systems, and support local or international operations according to the technical requirements of each deployment. **Microsoft Teams Direct Routing can also be integrated where required.** [Explore SIP Trunking](https://www.virtual-call.com/sip-trunking) ![SIP Trunking for PBX and Microsoft Teams integration](https://www.virtual-call.net/hubfs/Virtual-Calls%20SIP%20Trunk%20integrations-1.jpg)   ### Wholesale Voice Termination **For carriers, operators, established VoIP providers, and professional organisations with controlled voice traffic.** Virtual-Call provides international voice termination with routing based on traffic profile, destination, and technical requirements rather than treating every voice route as interchangeable. [Explore Wholesale Voice Termination](https://www.virtual-call.com/products/voice-termination) ![Wholesale voice termination for controlled international traffic](https://www.virtual-call.net/hubfs/AI-Generated%20Media/Images/Global%20Telecom%20Network%20Map%20With%20Quality%20Indicators.png)     ## Explore Virtual-Call across our markets Find Virtual-Call content and communication solutions for each market. ### Austria [![Virtual-Call in Austria](https://www.virtual-call.net/hs-fs/hubfs/VC%20countries%20we%20offer%20Services/sip_trunk_and_cloud_pbx_austria.jpg?width=301&height=169&name=sip_trunk_and_cloud_pbx_austria.jpg)](https://www.virtual-call.at)   ### Brazil [![Virtual-Call in Brazil](https://www.virtual-call.net/hs-fs/hubfs/VC%20countries%20we%20offer%20Services/sip_trunk_and_cloud_pbx_brazil.jpg?width=301&height=169&name=sip_trunk_and_cloud_pbx_brazil.jpg)](https://www.virtual-call.com/br/)   ### Germany [![Virtual-Call in Germany](https://www.virtual-call.net/hs-fs/hubfs/VC%20countries%20we%20offer%20Services/sip_trunk_and_cloud_pbx_germany.jpg?width=301&height=169&name=sip_trunk_and_cloud_pbx_germany.jpg)](https://www.virtual-call.com/de/)   ### Switzerland [![Virtual-Call in Switzerland](https://www.virtual-call.net/hs-fs/hubfs/VC%20countries%20we%20offer%20Services/sip_trunk_and_cloud_pbx_switzerland.jpg?width=301&height=169&name=sip_trunk_and_cloud_pbx_switzerland.jpg)](https://www.virtual-call.ch)   ### International [![Virtual-Call international services](https://www.virtual-call.net/hs-fs/hubfs/VC%20countries%20we%20offer%20Services/sip_trunk_and_cloud_pbx_usa.jpg?width=301&height=169&name=sip_trunk_and_cloud_pbx_usa.jpg)](https://www.virtual-call.com)     ### Professional IT Services for Telephony Integration and Migration Planning a Cloud PBX migration or integrating telephony with your business systems? Virtual-Call provides technical support for Cloud PBX implementation, CRM integration, and Microsoft Teams Direct Routing, helping your team assess requirements, dependencies, and the appropriate migration path. **✓ Migration planning based on your existing environment** **✓ Cloud PBX, CRM, and Microsoft Teams integration support** **✓ Technical guidance before and during implementation**   **[Explore Professional IT Services](https://www.virtual-call.net/it-services?hsLang=en)** ![businessman-in-an-office-seated-in-front-of-a-computer-a-dashboard-screen-cloud-telephony](https://www.virtual-call.net/hs-fs/hubfs/businessman-in-an-office-seated-in-front-of-a-computer-a-dashboard-screen-cloud-telephony.png?width=1344&height=768&name=businessman-in-an-office-seated-in-front-of-a-computer-a-dashboard-screen-cloud-telephony.png) ##### About us About us Virtual-Call GmbH is your partner in communication services. Powerful and reliable. Since 2013, Virtual-Call has been providing best-in-class cloud telephony solutions to both domestic and international enterprises. We are proud to offer a wide range of services, including wholesale voice and SMS termination. ##### Products Products - [Cloud PBX](https://www.virtual-call.com/cloud-pbx) - [SIP Trunking](https://www.virtual-call.com/sip-trunking) - [MS Teams Direct Routing](https://www.virtual-call.com/microsoft-teams-direct-routing) - [Wholesael Service](https://www.virtual-call.com/wholesale) ##### Company Company - [About us](https://www.virtual-call.net/about-us) - [Contact](https://www.virtual-call.net/contact) - [Blog](https://www.virtual-call.net/blog) [![Virtual-Call - your Communication Service Provider](https://www.virtual-call.net/hubfs/vcall_logowithout_globus_transparent_840-x-341-1.png)](https://www.virtual-call.net) - [Data protection](https://www.virtual-call.net/data-protection) - [Imprint](https://www.virtual-call.net/imprint) - [Terms and Conditions](https://www.virtual-call.net/terms-and-conditions) © 2026 Virtual-Call GmbH | Stettbachstrasse 6, 8600 Dübendorf, Switzerland