Service · Computer Network Assistance for Companies

Voip Telephone Provider

As a VoIP provider for businesses we design and manage cloud switchboards, SIP trunks and IP telephone lines: geographic numbering, CRM and Microsoft Teams integration, call security and human technical support with guaranteed SLAs. Cut your phone costs, with support covering the whole of Lombardy.

  • 4.7 · 38 Google reviews
  • 25 years of experience
  • ISO 9001 / ISO 27001
IP phone and professional headset for business VoIP services
-40% on phone costs

01 / Risposta rapida

What is VoIP for businesses, in short

VoIP (Voice over IP) lets you make calls over the Internet instead of a traditional line: lower costs, a scalable cloud switchboard and direct integration with CRM, helpdesk and collaboration tools such as Microsoft Teams.

  • Migration from ISDN lines and traditional PBXs with no service downtime
  • Geographic numbering and number portability handled by us
  • PC and smartphone softphones for remote work

02 / Who we work with

The right IP telephony for every business

We work with both those starting from scratch and those migrating from ISDN or traditional PBX systems to modern, scalable IP platforms.

  • Companies
  • Technical firms
  • Digital agencies
  • Call centres
  • Professionals

03 / Traditional or VoIP

Traditional phone line or VoIP: which to choose

Moving to IP isn't just about costs: it changes how the phone fits into everyday work.

Traditional line (ISDN/PBX)

  • Extensions and lines tied to on-site physical hardware
  • Adding a number requires an intervention on the line
  • No native integration with CRM or cloud tools

Cloud VoIP switchboard

  • Reduced phone costs and transparent rates
  • New extension ready in minutes, even remotely
  • Integration with Microsoft Teams, CRM and helpdesk
In short: For most businesses VoIP cuts costs and makes telephony part of the workflow; call quality matches or beats a traditional line, as long as the network is correctly sized with QoS and dedicated voice bandwidth.

04 / The advantages

Why choose TN Solutions as your VoIP provider

  • 40% potential savings on phone costs
  • 0 licence costs with an open-source switchboard (FreeSWITCH/3CX)
  • 24/7 monitoring of voice quality, latency and jitter
  • 25+ years of experience as a System Integrator

How quickly we take charge of your request

Just like in our VirtualAssistance support contract model, the response time is selectable based on how critical your systems are: the shorter it is, the higher the priority.

Response SLABest suited for
3 hoursCritical servers and services that cannot afford downtime
8 hoursWorkstations and services with a significant operational impact
12 hoursRelevant requests that can be handled within the working day
24 hoursRoutine requests and activities that can be scheduled

It's the same selectable SLA model used in our IT support contracts: we define it together based on your systems, with no hidden costs.

Not sure which SLA level is right for you? We analyse your infrastructure for free and help you choose the SLA that best fits your company, with no obligation.

05 / Tools and technologies

VoIP platforms and integrations we manage

  • FreeSWITCH
  • 3CX
  • SIP trunk
  • Microsoft Teams
  • Google Workspace
  • PC and mobile softphone

06 / Partner tecnologici

07 / Approfondimento

Guide to VoIP providers for businesses

  • 25+ Years supporting businesses
  • 4.7/5 Average rating on Google
  • 38 Verified reviews
  • ISO 9001/27001 ISO certifications

Looking for a reliable VoIP provider for your business? TN Solutions designs and manages cloud VoIP switchboards, SIP trunks and IP telephone lines for companies of every size: geographic numbering, CRM and Microsoft Teams integration, call security and human technical support with guaranteed SLAs. Cut your phone costs and upgrade your switchboard with zero service interruption.

IP phone and professional headset for business VoIP services

VoIP provider and business telephony solutions

Business communication is more effective and flexible with professional VoIP solutions. TN Solutions is a VoIP provider for businesses, with a full range of IP-based telephone services designed to guarantee savings, scalability and continuity. We offer tailored solutions, cloud switchboards, geographic numbering and CRM integration with your business applications.

We manage every stage: from supplying devices to configuring VoIP lines, ensuring dedicated technical support and guaranteed SLAs. The service integrates with our network assistance for businesses, because quality IP telephony always starts with a well-designed network.

Why choose TN Solutions for VoIP telephony

Fast connectivity, dedicated support and easy integration: the three pillars of our VoIP offering.

No compromises on voice quality

Transform business communication with clear, uninterrupted calls:

  • Continuous monitoring of voice quality (MOS), latency and jitter
  • QoS configured on the network to prioritise voice traffic
  • HD codecs and certified devices for crystal-clear audio
  • Line redundancy for service continuity

An expert technician always by your side

Our team is ready to assist you with dedicated, competent support:

  • Fast response from in-house technicians, never automated answering systems
  • Remote and on-site interventions across Lombardy
  • Staff training on phones and switchboard usage
  • Preventive maintenance and periodic updates

Seamless IT integration

Integrating VoIP telephony with your existing systems is quick and simple:

  • Migration from ISDN lines and traditional PBXs with no downtime
  • Integration with Microsoft Teams, Google Workspace, CRM and helpdesk tools
  • Softphone apps on PC and smartphone for remote work
  • Portability of existing numbers managed by us

How we operate: cloud and open-source VoIP switchboards

We support the setup and management of free VoIP switchboards, based on open-source platforms such as FreeSWITCH or free versions of 3CX. An ideal choice for organisations seeking maximum flexibility and control, with no licence costs. We customise every installation with professional features: IVR, call queues, call recording, reporting.

Every system is secured with firewalls, strong authentication and regular updates.

Virtual cloud switchboard: business devices connected to the IP telephony platform

Professional VoIP provider: choose TN Solutions

As a VoIP provider for the business world, TN Solutions guarantees reliable business phone lines, with custom SIP trunks, real-time monitoring and competitive rates. Every project is tailored to the number of users, devices, integrations and voice traffic involved.

Our solutions also support integration with collaboration tools and helpdesk platforms, so the phone becomes part of the workflow rather than an isolated system.

Who we work with

We work with companies, technical firms, digital agencies, call centres and professionals who want to modernise their phone infrastructure. Our VoIP solutions for businesses suit both those starting from scratch and those migrating from ISDN or traditional PBX systems to modern IP platforms.

We also supply VoIP phones, SIP gateways, professional headsets and certified routers, providing a complete turnkey package.

VoIP switchboard maintenance: desk phone and headset with microphone on an office desk

VoIP security and technology

Every deployment is protected by advanced security policies: encrypted communications, VoIP firewalls, blacklisting, access control and regular backups. We monitor uptime, voice quality, latency and jitter to guarantee a consistent, reliable user experience.

If something goes wrong we respond quickly with human technical support, never automated. And if your network needs a preliminary check, our technicians assess it together with your switch and network equipment before activating the service.

Advantages of a professional VoIP provider

Here's why to choose TN Solutions as your VoIP provider for businesses:

  • Reduced phone costs and transparent rates
  • Scalable VoIP switchboard, accessible remotely too
  • Compatibility with your business devices and software
  • Call security and protection from unwanted access
  • Professional technical support and tailored configuration

Frequently asked questions

What is VoIP and how does it work for businesses?

VoIP (Voice over IP) lets you make calls over the Internet instead of a traditional phone line. It's a technology that reduces costs, improves call quality and integrates easily with other digital systems such as CRM, helpdesk and collaboration tools.

What advantages does VoIP offer businesses?

It offers savings on phone costs, scalability, centralised line management, mobility (phone on PC or app too), call recording and integration with CRM and cloud tools. Adding an extension takes minutes, not a physical line intervention.

What does a professional VoIP service include?

It includes business VoIP lines, geographic numbering, extension management, virtual switchboard, reporting, technical support and plans tailored to your number of users and sites. TN Solutions also supplies the devices: IP phones, SIP gateways and headsets.

Is VoIP call quality reliable?

Yes, if the network is sized correctly. We configure QoS, dedicated bandwidth for voice traffic and latency/jitter monitoring: the result is quality equal to or better than a traditional line, plus extra flexibility and advanced features.

Other network and connectivity services for businesses

Quality IP telephony always starts with a well-designed network: see also switches, routers and business access points.

Ready to move your switchboard to the cloud with no risk?

One of our technicians will analyse your lines, traffic and infrastructure free of charge and propose the most suitable VoIP migration plan, with no service downtime.

08 / Talk to an expert

Talk to a VoIP telephony expert

Tell us about your current switchboard, we'll get back to you within one business day.

Describe the lines, extensions and voice traffic you want to manage: one of our technicians will contact you for a free initial discussion, no obligation and no automated answering.

At least 10 characters.

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