ISP and VoIP Services

Frustrated with missed calls and slow connections?

When your internet drops or voice quality breaks up, your team feels it right away. 

Calls are missed, clients left waiting, and your staff stuck rebooting routers or chasing vendors. It’s not just an inconvenience; it eats into your day and damages trust.

That’s where a proper setup makes all the difference. Our ISP and VoIP services are designed to avoid these exact problems. Circuits are installed without downtime. Calls are prioritised, even during peak hours. 

And when something does go wrong, we’re already working on it. At Sonar IT, we treat your connection like it matters, because it does.

Business VoIP phone service with full support included

Your business needs more than just “fast internet.” You need a stable, secure connection that supports everything you do, from video calls to cloud backups. Our business ISP London solution is fully managed, so you’re never left guessing.

With our business VoIP phone service, you get fibre or leased line options through BT, tailored for your location. Speeds are consistent, uptime is 99.99%, and we prioritise traffic so calls always sound sharp. 

We set it up with no disruption, then stay in the background keeping it all running. It's support you can trust, without the usual back-and-forth.

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What ISP and VoIP services really provide

An ISP (internet service provider) keeps your team online. VoIP services (Voice over Internet Protocol) run your phones over that same connection. 

Together, they’re what keep your business running smoothly, whether that’s emails, video calls, or day-to-day customer support.

With Sonar IT, everything is handled for you, backed by the best ISP service. From provisioning your line to setting up your phones, it’s one streamlined service. 

You don’t need to deal with multiple companies or get passed around. It’s fast to install, built to scale, and simple to support.

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Why our VoIP solutions in London work better for you

VoIP solutions in London can be hit or miss depending on how it’s set up. With Sonar IT, you’re getting a team that knows how to get it right. We support all major systems, from self-hosted VoIP to PBX and Gamma.

More importantly, we know what makes a call drop, and how to prevent it. All voice traffic is prioritised. Our systems are tuned to deliver <1% packet loss and under 50ms latency. 

That means fewer dropped calls, cleaner conversations, and a setup that keeps up with your business. It’s why clients stay with us, and why many cut their costs after switching.

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Why we’re the best ISP in London for SMEs

We’re not aiming to be the cheapest; we’re here to be the best ISP in London for small to mid-sized teams.

If you’ve got 10 to 40 users, we’ll get you the best ISP service available for your needs, location, and workload.

• Fully managed business ISP London rollout, with no downtime during install
• BT fibre or leased line provisioning with priority fault handling
• VoIP services with Gamma, PBX, and hosted options available
• 99.99% uptime with <1% packet loss and under 50ms latency
• VoIP service providers who resolve over 80% of issues on first contact

Ready for better ISP and VoIP services?

If your business has between 10 and 40 users and you're still dealing with unreliable service, it’s time to switch. 

We’ll give you a cleaner setup, stronger support, and clearer calls, without the hassle. Let’s get you connected the right way.