Fully featured Cloud Telephony from just £10 per month

Building on the success of Hosted PBX 2.1, FireSwitch now has mobile and desktop softphone included
as standard features, as well as full system call recording.

Fully featured hosted telephony without compromising on call quality.

Why FireSwitch?

  • Our latest fully featured hosted telephony solution

  • From just £10 per month with free set up available

  • Mobile and desktop softphones as standard

  • Full system call recording

  • Assured call quality using Spitfire Voice Approved circuits

  • Easy to use and manage

  • Add extensions whenever and wherever you need them

  • Link multiple sites together and operate as one

  • Keep your existing numbers or add new ones from any geographic location

  • Inbound & outbound backup call resiliency included as standard

  • Award winning Hosted PBX provider

  • FireSwitch Flex – for maximum contract flexibility, reduce extensions in term without penalty.



Probably the most cost effective Cloud business telephone system available but at the same time not sacrificing any of the key features required by small and medium sized companies.

FireSwitch has been developed by our in-house engineering team to provide a cost-effective and highly scalable Cloud telephony solution.  We will continue to innovate this platform by adding exciting new functionality, ensuring that your business is future proofed all for one simple low cost monthly payment.

We are currently offering FireSwitch with no connection or set up charges and just £10 per month per telephone extension, inclusive of all available features.  Combined with telephone handset rental, from less than £3 per month, your business can benefit from a fully fledged business telephone system at less than £13 per user per month!!

There has never been a better time to upgrade to a hosted telephone system with an award winning service provider.


Some of the most common features are listed below, but please speak to a member of our Sales Team for a complete list of supported features:

  • Mobile and desktop softphone
  • Full system call recording (storage required)
  • Web based management console
  • Call Management/Routing (e.g. call transfer, forward, hold, park/pickup)
  • Auto Attendant/Digital Receptionist/Call Queuing & Management Statistics
  • Voicemail/Music on Hold
  • Call Twinning (Ring Extension & Mobile Simultaneously)
  • Programmable buttons on handsets/soft phone
  • Group phone directory
  • Voice Mail to email notification
  • Multi-user conference call bridge


In order to make or receive a call, your handset or softphone on site needs to connect to the caller via the public telephone network.  Spitfire has a unique place in the market as we offer a fully managed end-to-end solution to support the full journey of a call.

Your FireSwitch phone system is located in one of Spitfire’s secure data node facilities. From here it connects to the Spitfire SIP network; a network isolated from the public internet and purely dedicated to SIP voice traffic, with a direct interconnect to the public telephone network.

Your office users connect to FireSwitch using a Spitfire voice approved data connection to assure business voice quality and provide a completely secure connected environment.  The call will be delivered to the handset or softphone to complete the route from the public telephone network to your users.

Any remote users or branch offices may also connect to the hosted phone system using existing Internet connections, however please discuss these with us so that we can advise on how to assure call quality.

Mobile softphones are as simple to set up as scanning a QR code, while handsets are pre-configured by our engineers and are set up on a ‘plug-and-play’ basis to make self-installation extremely straight forward. 

Each user will have an extension on the system, with everything managed centrally on Spitfire’s network, regardless of their location. This makes adding user extensions simple and keeps lead times short, with handsets sent out ready to plug in and use immediately.


With Spitfire? Extremely.  For a start FireSwitch is located in one of our secure core network nodes.  Not only do we build resiliency in to our server architecture but the node itself has been deployed with power and backup redundancy.

Our core network has been designed to provide high availability for all inbound and outbound telephone calls. Not only do they connect via geographically diverse endpoints, but Spitfire also interconnect with multiple global Tier 1 wholesale voice carriers – offering unprecedented levels of reliability, up-time and call quality.

When paired with a Spitfire voice-approved data circuit we are also able to offer a complete end-to-end service, not only assuring voice quality but also up-time availability.

Spitfire have been providing hosted telephony, SIP and Voice over IP solutions for more than 10 years.  Cloud telephony is now the preferred option for nearly all businesses that we partner with.



    • Feature rich system – all features are included in one simple monthly charge for each extension. If you use call recording just pay for the storage you use. No expensive hardware or licence key add-ons if your requirements change.
    • Flexibility of location – download and use the FireSwitch desktop softphone or smartphone app to work from anywhere. It even auto-configures using a QR code!
    • Future proof upgrade and development path – FireSwitch is developed in-house and its feature set will continue to grow as your business does.
    • Scalability – the system grows with your business so that you can add extensions as and when you need to.
    • Free of charge set up, low cost per user rental, cheap phone calls all with one provider for simple billing.
    • Free calls between extensions and other connected offices.
    • Easy to use online portal to self-manage users as required


FireSwitch is designed to be a low cost self-install system and is easy for users or your IT Support company or department to connect by themselves.

However for a limited time Spitfire are providing 3 hours of free on-site installation for businesses located within the M25.  Spitfire are the only hosted PBX solution provider on the market to offer free on-site installation and training!


Although both systems provide a great business quality hosted phone system, which is better suited to your business? Both systems are hosted within a secure Spitfire network node – so how do you choose?

The main difference between the two solutions is the features that they offer.  FireSwitch is now the preferred option for most businesses although some will require a feature not yet available, as shown in the table below, when 3CX Cloud will be the recommended choice.



3CX Cloud

Call Reporting
Call Recording
UC e.g. Web Meeting
CRM Integration
Wallboard Coming Soon!
Soft-phone/Mobile App

Please call us and speak to our team who will be more than happy to discuss your requirements and recommend the correct option for your business.

020 7501 3333


Spitfire are an award winning service provider with over a decade of experience providing SIP solutions, and we have won backtoback awards for the Best Hosted PBX at the Comms National Awards.

When using a Spitfire voice approved Ethernet or Broadband circuit, call quality from the handset to the public telephone network can be ensured at all times, making Spitfire one of the only providers to offer a fully owned end-to-end solution with quality guarantees.

Our dedicated and proactive Account Management means that you have a single point of contact to work in partnership with your business to help keep on top of your services and changing requirements. Our Account Managers are all technically trained including the Cisco CCNA certification so that they can provide useful insight and relevant recommendations. Our Account Management includes regular contact and account reviews, with a hands-on approach and personal touch.

Spitfire’s Support is carried out in-house by trained and qualified engineers and technicians. Spitfire boasts an award-winning support team who are quick to react and will always aim to fix your fault on the first call. With a target of 10 seconds to answer the phone, we won’t leave you on hold if you have an issue.


At Spitfire we understand that businesses sometimes need to grow or contract. FireSwitch Flex allows you to increase or reduce the number of FireSwitch extensions in line with your needs. Adding extensions is simple, simply add whenever you need, pay the additional extension rental and your contract is unaffected. 

Flex also allows you to save money by reducing the number of extensions even within your contract minimum term by up to 20% of the original number of contracted extensions. If you have chosen to rent FireSwitch handsets for these extensions these can also be returned to save even more money. All you have to do is give Spitfire one month’s notice and return any handsets.

FireSwitch Flex is available to all customers paying the standard price of £10 per extension or £9 where no softphone is provided. Rental reduction is applied in the month after the notice period and for handset rental when the handset is received by Spitfire in acceptable condition. Part month service credits will not be applied.


Learn more …


FireSwitch – Hosted PBX 2.2


More about FireSwitch

Business Grade Call Quality

  • End-to-end solution provided by Spitfire

  • Voice Approved FFTC, FTTP or Dedicated Fibre Ethernet or Voice Approved Broadband circuits

  • Resilient backup voice routes provide for both inbound and outbound calls

Working from home?

Working from home doesn’t need to mean compromising the efficiency of your communications.  Our range of hosted phone systems and business connectivity can help you solve all of these problems.

Additional Information


  • Highly scalable at short notice – easily Flex the number of extensions up or down as required

  • Divert calls to a predetermined backup destination

  • Deploy the system over multiple locations for free calls between internal office extensions


  • Port existing telephone numbers to Spitfire’s SIP network

  • No need for diversion charges when moving office

  • Numbers available from all UK dialling codes, regardless of your geographic location.  We can even provide numbers from

    International locations.

The Big Switch Off

The 5th September 2023 was announced as the national ‘stop sell’ date – the point at which Openreach will no longer provide new or modify existing analogue and ISDN lines or allow transfers of existing services between service providers.

The switch off project completes on 31st January 2027 and from this date it’s all-IP or nothing.

Find out more …

Barnacle Geese migrate twice a year, sometimes travelling over 3,000 miles in search of warmer climates.

Free migration to Spitfire’s Cloud hosted telephone system.

Easy to self-manage. From £10 per month.

Barnacle Geese migrate twice a year, sometimes travelling over 3,000 miles in search of warmer climates.

Free migration to Spitfire’s Cloud hosted telephone system.

Easy to self-manage. From £10 per month.

Barnacle Geese migrate twice a year, sometimes travelling over 3,000 miles in search of warmer climates.

Free migration to Spitfire’s Cloud hosted telephone system.

Easy to self-manage. From £10 per month.