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•CYBERSECURITY •IT CONSULTING •MANAGED SERVICES •IT MANAGEMENT •IT SUPPORT •DEVELOPMENT •IT OUTSOURCING

•CLOUD •MICROSOFT 365 •MICROSOFT ENTRA •VOIP •BACKUP & RECOVERY •REMOTE WORK SOLUTION •EMAIL SECURITY

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VoIP
Smart, scalable and secure

Cloud phone systems for flexible, secure, and high-performance communication

At 1SWISS1, we deploy business-grade VoIP solutions that replace traditional telephone systems with scalable, modern technology.

KEY FEATURES

01
VoIP Infrastructure Setup

02
Advanced Calling Features

03
Microsoft Teams Telephony

04
Scalability and Multi-Site Deployment

05
Security and Compliance

06
Integration with Business Tools

07
Monitoring, Reporting and Support

VoIP Infrastructure Setup

Modernize your phone services with voice over IP technology.

Cloud-based IP phone systems

We replace traditional telephone hardware with VoIP phones and softphones that operate entirely over the internet. These cloud solutions allow your business to cut hardware costs and gain flexibility in how and where teams connect.

Compatibility with any device

Whether your employees use desk phones, smartphones, or computers, our VoIP service connects them reliably with minimal setup. We also support adapters (ATA) for legacy devices, ensuring a smooth transition from analog systems.

Session Initiation Protocol (SIP) setup

We configure SIP trunking to manage call routing and signaling between your local area networks and external lines. This core transport protocol supports secure, real-time communication over high-speed internet connections.

Phone number portability

Retain all your existing business numbers while moving to cloud-based systems. Our team handles the porting process end-to-end, ensuring zero disruption during the switch.

Advanced Calling Features

Deliver a professional experience and improve internal workflows.

Interactive voice menus (IVR)

We set up smart auto-attendant systems that route incoming calls based on user input — reducing manual handling and improving response times.

Call forwarding and dynamic routing

Our VoIP system enables dynamic routing based on location, availability, or business hours — sending calls to the right person, wherever they are.

Voicemail-to-email & transcription

Missed calls generate instant email notifications, complete with audio files or transcribed messages, helping teams react quickly.

Call queues and hunt groups

Efficiently distribute calls across teams using custom queues and hunt groups — ideal for sales, support, and high-volume phone services.

Microsoft Teams Telephony

Use Microsoft Teams as a full-featured VoIP phone system.

Public switched telephone network (PSTN) connectivity

We link your Teams accounts to global telephone networks, allowing users to make and receive external voice calls without switching platforms.

Direct Routing integration

Our Teams VoIP service uses Direct Routing to connect Microsoft 365 with SIP lines — giving you cost control and greater flexibility compared to bundled solutions.

Centralized communications hub

Teams becomes your all-in-one collaboration platform for chat, meetings, and phone connects, simplifying user adoption and training.

Compliance and security controls

We configure the system to comply with company policies and frameworks such as the Communications Assistance for Law Enforcement Act (CALEA) — ensuring secure, compliant operations.

Scalability and Multi-Site Deployment

Expand your phone system without costly hardware or delays.

Global deployment on local area networks

We install and manage VoIP systems across multiple locations, ensuring consistent configuration and call quality across offices, retail stores, or remote setups.

Flexible licensing by user

Add or remove users anytime, without extra infrastructure. VoIP for business scales instantly to meet your needs.

Unified admin portal

All users, extensions, and devices are managed through a secure real-time interface, reducing administrative overhead and increasing visibility.

Disaster recovery readiness

We design redundant setups to keep your voice services running even during internet or server outages — protecting business continuity.

Security and Compliance

Protect your VoIP service against threats, fraud, and legal risks.

Encrypted voice over IP communication

We enable encryption protocols like SRTP and TLS to secure voice calls against interception or tampering.

Role-based access and audit trails

System access is tightly controlled, with activity logs for all changes. This helps you meet internal security rules and regulatory standards.

Call fraud prevention and monitoring

We deploy alert systems to detect abnormal patterns (e.g., excessive international calls), helping you act before costs escalate.

Regulatory compliance integration

Our VoIP solutions are built with compliance in mind — from GDPR to CALEA — ensuring lawful assistance for law enforcement where required.

Integration with Business Tools

Link your telephone services to everyday software for smarter workflows.

CRM integration for smarter calling

We connect your VoIP service with tools like Salesforce, HubSpot, or Zoho, so your team can make calls, log notes, and view customer info all in one place.

Click-to-call from web browsers

Our solutions support click-to-call links, making it easy to launch calls from email signatures, support dashboards, or intranet systems.

Call pop-ups and live data access

Agents see caller ID, past interactions, and notes the moment a call connects — helping deliver a more personalized and efficient service.

Open APIs for workflow automation

We enable your developers or IT team to create custom integrations, automations, or reports using standard VoIP API libraries.

Monitoring, Reporting and Support

Maintain full control and insight into your telephony performance.

Live performance dashboards

See real-time metrics such as call volume, missed calls, and call duration — segmented by team or location.

Call quality tracking

We continuously monitor packet loss, latency, and jitter to ensure that voice over internet protocol calls remain stable and high-quality.

Historical reporting and analytics

Detailed call logs, user activity, and system reports help with forecasting, coaching, and strategic planning.

Responsive support team

Our specialists are available for setup, troubleshooting, updates, and configuration changes — keeping your VoIP service efficient at all times.

How we implement your VoIP solution

Discovery and audit

We assess your current phone setup, internet connection, call volume, and team structure.


System design and provider selection

Based on your needs, we choose the best-fit VoIP service — cloud PBX, Teams telephony, or hybrid.


Configuration and security

We set up SIP trunks, phones, user accounts, encryption, and access rules.


Number porting and testing

Your phone numbers are transferred smoothly, and test calls are run to validate every function.


User onboarding and training

We provide documentation, workshops, and individual support to ensure smooth adoption.


Monitoring and support

Our team keeps your systems running securely, with performance reports and rapid intervention when needed.

Why choose 1SWISS1 for VoIP?

Complete business phone solutions

From setup to support, we handle every aspect of your VoIP system — giving you reliable, scalable telephone services.


Modern infrastructure with legacy support

Whether you're starting fresh or transitioning from traditional telephone lines, we ensure seamless integration and device compatibility (including adapter ATA support).


Secure, compliant voice over IP

Encryption, fraud monitoring, and legal frameworks like the Law Enforcement Act are all part of our service.


Integration with tools you already use

Microsoft Teams, CRMs, project platforms — we connect your voice calls directly to your business processes.


Long-term support

Our helpdesk and engineering teams stay with you over time — scaling, optimizing, and securing your communications.

VOIP technologies and partners

Nous travaillons avec les partenaires les plus avancés et sélectionnons les meilleures technologies pour rendre votre entreprise cybersécurisée.

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Let's talk about it!

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CLOUD
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MICROSOFT ENTRA
VOIP
BACKUP & RECOVERY
REMOTE WORK SOLUTION
EMAIL SECURITY
Address
logo localisation Rue Saint-Ours 4, Geneva, Switzerland
Contact
+41 (0) 58 255 58 88
Follow us
logo Linkeldin LinkedIn ↗

© 2025 | By logo 1S1

Let's talk about it!


Explore
HOME
ABOUT US
POLICIES
Services
CYBERSECURITY
IT CONSULTING
MANAGED SERVICES
IT MANAGEMENT
IT SUPPORT
DEVELOPMENT
IT OUTSOURCING
Solutions
CLOUD
MICROSOFT 365
MICROSOFT ENTRA
VOIP
BACKUP & RECOVERY
REMOTE WORK SOLUTION
EMAIL SECURITY
Address
logo localisation Rue Saint-Ours 4, Geneva, Switzerland
Contact
+41 (0) 58 255 58 88
Follow us
logo Linkeldin LinkedIn ↗

© 2025 | By  logo 1S1