VOIP & IP TELEPHONY


Cloud telephone systems for flexible and high-performance communication

Whether you are migrating from a physical PBX, deploying telephony on Microsoft Teams or looking to unify your communications across multiple sites, 1SWISS1 designs and deploys the VoIP solution suited to your organisation — with particular attention to voice quality, security and service continuity.

FAQ

Frequently asked questions about VoIP

What is VoIP and how does it work?

VoIP (Voice over IP) is a technology that transmits telephone calls over the Internet rather than through traditional telephone lines. In practice, your voice is converted into digital data packets, transmitted over your Internet connection and reconstructed at the other end — with sound quality often superior to traditional telephony, at a significantly reduced cost.


Is VoIP reliable for professional use?

Yes, provided your Internet connection is of sufficient quality. We systematically carry out an audit of your network infrastructure before deployment to guarantee call quality. Our solutions also incorporate redundancy mechanisms to ensure service continuity even in the event of partial network failure.


Can we keep our existing telephone numbers?

Yes. We manage the entire number portability process to the new VoIP solution — without service interruption during the transition. Your clients continue to call the same numbers, without even knowing that your infrastructure has changed.


Does VoIP work with Microsoft Teams?

Yes. We deploy telephony solutions directly integrated into Microsoft Teams via Direct Routing — so your employees can make and receive external calls without leaving the application. This is the ideal solution for companies already equipped with Microsoft 365.


How much does a VoIP solution cost for a Swiss SME?

The cost depends on the number of users, desired features and call volume. VoIP solutions are generally much less expensive than traditional telephony — with predictable monthly per-user billing. We carry out a cost comparison with your current system before any proposal.


Is VoIP secure?

Yes, with the right configuration. We activate call encryption (SRTP/TLS), role-based access control and fraud detection systems to protect your communications. Security is built into your VoIP infrastructure from the outset.


What happens in the event of an Internet outage?

We configure automatic failover solutions — forwarding to mobiles, backup lines or alternative numbers — so that your calls continue to connect even in the event of an Internet outage. Service continuity is planned from the outset of deployment.

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A solution tailored to your needs

Services, templates or support: we help you choose and implement the most relevant solution.