VoIP Services for Businesses in London

The Final Step is an award-winning IT MSP, providing VoIP services to SMBs and enterprises in London and Greater London. Having a hosted VoIP phone service for your business lets you make calls or host video conferences with confidence, whilst saving you money.

Speak to a VoIP services expert

Providing internet phone systems to small and medium-sized businesses

Are outdated and expensive phone systems holding your business back?

Our hosted VoIP solutions are designed to address these challenges head-on, offering excellent call quality, cost savings and scalability for your growing needs.

We know that reliable communication is essential to your business success, so we provide secure, sophisticated VoIP phone services that improve connectivity and support remote working. With our expert support, you can transform your communication systems and focus on growing your business.

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Modern VoIP services for growing businesses

Stay connected to colleagues and clients

Clear communication is essential for any business. Our VoIP solutions provide high-quality calling and reliable connectivity, meaning you can stay in touch with colleagues and clients whether you're in the office or working remotely. 

 

Integration with your setup

Our VoIP system is designed to work with your existing IT infrastructure. By integrating with your current hardware and software, we help you upgrade your communications without a major overhaul. This smooth transition allows you to enjoy modern features and improved connectivity with minimal disruption.

 

Innovative tools and features

Improve your communication beyond clear calls. Our VoIP services come equipped with advanced features like call forwarding, video conferencing and unified messaging, ensuring your business stays agile in a dynamic work environment.

How our Internet phone service works

Assess

Identify key criteria for a good decision

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Analyse where you are now against where you want to be.

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Organisations often switch Internet phone providers due to poor call quality, poor support, confusing pricing, and a lack of features.
 
A thorough understanding of your current needs, likely future needs and how your staff actually use phones is really important in picking the right solution for you.

Analyse

Confidently commit to the best contract for you

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Getting tied-in to poorly performing phone systems is frustrating.

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Senior managers have good reasons for being concerned about choosing the "wrong" phone system.

Everyone assumes it is easy, but it isn't, particularly if you are not technical. A bad choice is very visible to colleagues, clients, and partners.

That's why we advocate using a partner who can provide a thorough analysis of your current pain points, ways of working and ideally, user acceptance testing.

This leads to confident, well-informed decision-making with a solid return on investment.

 

 

 

 

Install

Smooth transition for home, hybrid and office

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A smooth install is based on thorough planning. Some considerations...

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  • Canvas how phones are used, what are the "must keep" features.
  • Any integrations, such as Teams, or other apps required?
  • Create "must have" and "nice to have" lists.
  • Call and invoice history.
  • Who needs traditional phones, software phones and/or mobile calls?
  • Who works from home, the office, abroad, on the road.

Support

Get comfortable using the new system

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You want colleagues to love using the phone systems.

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The best return on investment is achieved by having users embrace and use the new system.

This starts with assessing their opinions and needs, and enlisting them in testing. 

Training is also vital; the more targeted you can be, the better the result. For clients who want it, we have provided customised PDFs, Byte-size Bulletins (short video tips), dedicated web pages, face-to-face and online training tailored to the needs of particular departments and groups.

Of course, we also maintain and provide helpdesk support for these systems.

 

 

Why choose The Final Step as your business VoIP provider?

Cost-effective solutions

Get the best you can for your budget.

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Not everyone needs the same call plan, or all the features or the same handset.
 
We help you make the most of your budget by customising the solution to your needs.

On-going support

Keep your phone system up to date and make changes as needed. 

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A phone system is a live system that requires changes when people go on holiday, stop or start using auto attendant or voicemail, or when staff join or leave.
 
We are there to help when maintenance is required, or when changes are made that you have forgotten how to make, or don't work as expected.

Unified communications

Integrate your phone systems with your other technology.

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Navigate the jargon and multiple options with confidence that VoIP phone systems offer.
 
Make the right decisions around hardware, software and integrations with other key systems.

Tailored to your needs

Provide those who need a little extra with the tools to get the job done.

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Phones are not a "one size fits all" solution.
 
For example, receptionists often need different phone units, peripherals and dashboards to control calls.
 
You may have a small office abroad, a temporary project office or external consultants.
 
Our assessment, analysis and training consultancy ensures you have the system or systems tailored to your needs.
 

Training

Make sure everyone knows how to get the most out of their phone investment.

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It's surprising how common it is to find a majority of your staff only know and use a fraction of the phone system.
 
If only given the manual they may never get around to using features that would make them more productive.
 
Enabling your staff to save time and effort on communications frees them up for higher value activities. 
 
We have built tailored education programmes to ensure user adoption.

Reliable and secure solutions

From policies and setup to security - we have you covered.

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You may have policies or protocols to follow.
 
Who can record and listen to calls, and who can interrupt or listen in? We can help you fulfil these with the technical setup.
 
When considering new or replacement technology, you are required to consider cyber security by default. How are you securing your VoIP system?
 
What is your continuity and recovery position if the phone system should fail?
 
We can help secure your phone systems and integrate with your broader cyber resilience strategy.

The Final Step did a really fantastic job. We are a highly demanding client and have very specific requirements. Throughout the whole process, TFS maintained a methodical, thorough approach which has resulted in a first-class set-up which supports us perfectly.

Mark McDerment - Finance Director

London

We have used The Final Step as our IT support for nearly a year and a half and we couldn’t be happier with the level of service that they provide. They have helped to massively transform our IT infrastructure, enabling us to tighten our security as well as seamlessly moving us to cloud-based working.

Nicola Creighton - Office Manager, Fox Rodney Search

City of London, London

IT support Laura-devine

The Final Step provides a professional, user-friendly, solutions-focused service. I have recommended the company to many contacts.

Laura Devine - Managing Partner, Laura Devine Immigration

City of London, London

IT Support company peter-martin-intermusica

TFS’s philosophy of building long-term working relationships is evident throughout. They care about partnership rather than just short-term transactions.

Peter Martin - Director, Intermusica

Westminster, London

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VoIP Solutions FAQs

How does a modern VoIP solution support a remote-first strategy for our London headquarters?

A modern VoIP solution is built for the way businesses actually operate today, where your team might be in the office, at home or on the move at any given time. Key benefits for a remote or hybrid workforce include:

  • Work from anywhere, on any device: your team can make and receive calls through their laptop, mobile or desk phone from wherever they are
  • Consistent call quality and reliability, not dependent on physical office infrastructure
  • Number flexibility: keep your existing 020 numbers, port numbers across or add direct dial-in (DDI) numbers for individuals or teams
  • Seamless collaboration: calls, messaging and file sharing integrated in one place
  • Simple remote onboarding: new starters can be set up without needing to be in the office to configure a desk phone
  • Business continuity: if your office becomes inaccessible, your phone system keeps working exactly as normal with no interruption to incoming calls
  • Cost control and scalability: easily add or remove users as your headcount changes, without hardware changes
Which VoIP integrations are standard for high-growth London SMEs?

There’s no single standard VoIP integration for high-growth SMEs – so long as a VoIP platform provides your necessary integrations, the choice comes down to preference.

Most organisations choose one of the following approaches:

  • Microsoft Teams Calling (via Calling Plans or Direct Routing) for businesses standardised on Microsoft 365
  • Zooms Phone for teams who prefer or are used to Zoom
  • A standalone VoIP platform integrated with tools like CRMs, helpdesks and mobile devices

The right choice depends on your existing collaboration tools, growth plans and customer interaction needs. We help you assess the options and design an integration that fits your workflows, rather than forcing a one-size-fits-all solution.

What specific bandwidth and jitter guarantees do you offer to prevent issues on client calls?

Rather than fixed, one-size-fits-all guarantees, we focus on making sure your connectivity is correctly sized and prioritised for VoIP.

If you’re office-based, we:

  • Assess your call volumes and usage to identify the right level of internet speed and bandwidth
  • Help you decide how much is affordable and appropriate for your business
  • Reserve a dedicated portion of your bandwidth for voice calls, so call quality isn’t affected by other internet activity

By ensuring voice traffic is prioritised and not competing with general data use, we prevent common issues like jitter, delay and dropped calls. The result is consistent, reliable call quality based on your real-world needs, not unrealistic headline guarantees.

Can we keep our existing London business numbers when we migrate to your cloud system?

Yes. You can keep your existing numbers, port them across to the new system or choose new ones entirely. If you want to add direct dial-in (DDI) numbers for specific team members or departments, we can arrange that too. The goal is to make the transition as smooth as possible with no disruption to how your clients reach you.

How does your platform handle security compliance for call recording in regulated industries?

Call recording compliance is ultimately the responsibility of your business, but the rules are straightforward. If you are recording a call, you must inform the other party and give them the opportunity to consent. If they decline, the call must not be recorded. Call recording is not active by default and must be deliberately enabled, so there is no risk of accidental recording.

For regulated sectors with specific requirements around call recording, such as financial services firms subject to FCA rules, we can help ensure your recording setup is configured in a way that supports your compliance obligations. The specifics vary, and we would recommend confirming the details with your compliance team or legal adviser.

Why should we consider a Unified Communications (UCaaS) platform instead of just a standalone phone system?

Unified Communications (UC) brings calling together with chat, video and collaboration tools, whilst a standalone phone system focuses purely on voice.

Unified Communications:

  • Pros: Supports hybrid working, reduces tool sprawl, and integrates well with platforms like Microsoft 365. Scales easily as the business grows.
  • Cons: Requires more planning and user adoption to get full value.

Standalone phone system:

  • Pros: Simple, familiar and effective for businesses with straightforward calling needs.
  • Cons: Limited flexibility, fewer integrations and may be less suited to modern or remote working.

For many growing organisations, UC offers better long-term flexibility, whilst standalone systems can still be appropriate where simplicity and voice-only needs are the priority.

Book your free 30 minute consultation.

Speak with our experts to find the right VoIP services for your business.