Telecommunication Systems

There are many choices when it comes to selecting the right phone system for your business. There are a variety of factors to consider, for example, your internet connection speed and reliability, the number of handsets required and your future expansion plans as well as budgets and support options.

Communication services:


Telecommunication Systems

Business Mobile Plans

Our expertise is key

We have over fifteen years of experience in the fast-changing sector and will source and support the best possible solution for your business telephone system, taking into account all the unique and individual factors that make up your business.

We understand that it can be a difficult choice, regardless of your experience and knowledge in telephone systems as there are so many options to consider such as a fully hosted or on-premise cloud-based system. Whether you’re looking to upgrade or replace your existing telephony or are looking for your first hosted telephone system, Spire is here to help you and are happy to offer to advise.

Unlimited Extensions

On our 3CX communication system offering there is no per extension licensing, meaning unlimited extensions.


Improve Workflow

Disguise employee phone numbers as business phone number(s) to improve workflow and customer experience.

Video Conferencing

The reason why we describe what we provide as ‘communications’ and not ‘telephone’ is because our systems include video conferencing as standard.

Mobile App

3CX also includes a mobile app available on iOS and Android meaning your team can keep in touch via video, chat & phone when away from their desks.

“As an end-user and a partner, 3CX is in my opinion, one of the best communication systems available on the market today.”
Darren Ross

Director, Spire Technology Group


IP PBX: Features and benefits

What is an auto-attendant?

Auto-Attendant (or automated attendant) is a term commonly used in telephony to describe a voice menu system that allows callers to be transferred to an extension without going through a telephone operator or receptionist. The auto-attendant is also known as a digital receptionist, and is a common feature of contact center solutions as they allow callers to progress through the call flow more efficiently.

What is DID – Direct Inward Dialing?

DID stands for – Direct Inward Dialing (or DDI, Direct Dialling Inward in Europe) is a feature offered by telephone companies for use with their customers’ PBX system, whereby the telephone company (telco) allocates a range of telephone numbers associated with one or more phone lines. DID allows a company to assign a personal number to each employee, without requiring a separate physical phone line, for each, to connect to the PBX. This way, telephony traffic can be split up and managed more easily.

What is voicemail to email?

Voicemail to email, is a useful, time saving feature included in leading VoIP Communication systems that allows you to deliver voicemails left to your office extension directly to your email address. In today’s busy corporate world, it can help you keep on top of your workload and time sensitive messages. In a nutshell, voicemail to email ensures you never forget to check your voicemails again, by bringing voice messages to a platform that’s always being checked- your email inbox!

Hosted / Virtual / Cloud

What is hosted PBX?

A Hosted PBX is a private branch exchange (PBX) delivered as a hosted service. It’s also known as a Virtual PBX and the advantages that companies experience are the elimination of installation, operation and maintenance costs of their VoIP PBX. This is because their VoIP service provider hosts their PBX for them.

A Hosted PBX still allows organisations to utilize and take complete advantage of their phone system’s features such as voicemail, faxing, automated greetings, conferences and so on.

What is a cloud PBX?

A cloud PBX or virtual PBX provides a secure and reliable office phone system through an internet connection. It provides businesses with flexibility and scalability while also maintaining low costs.

 A cloud PBX functions in the same way, but is hosted on a cloud server rather than on premise. This can be a DIY hosting service, or hosted by the PBX service provider. Most small businesses now have reliable network connections, making this an attractive option. The cloud option is also becoming the preferred solution for many hotel PBX systems that would benefit from not having to provide for space, cooling, security and maintenance of the phone system.

What is a virtual PBX?

A virtual PBX is a business phone system that uses IP (internet protocol) communications. Unlike a traditional phone service, no on-premise phone lines or hardware is required. Virtual PBX solutions can be hosted by the service provider, or deployed in a cloud service.

Other protocols

What is RTP?

RTP – short for Real-time Transport Protocol defines a standard packet format for delivering audio and video over the Internet. It is defined in RFC 1889. It was developed by the Audio Video Transport Working group and was first published in 1996. RTP is used extensively in communication and entertainment systems that involve streaming media, such as telephony, video teleconference applications, television services and web-based push-to-talk features.

What is SDP?

SDP is the abbreviation for Session Description Protocol. The Session Description Protocol defines a standard for defining the parameters for the exchange of media (often streaming media) between two (typically) endpoints. It has been published by the IETF as RFC 4566. The SDP is typically embedded or encapsulated within another protocol, with the most widely-used application being inside of the SIP protocol inside most IP Telephony applications.

What is H.323?

H.323 is, much like SIP (Session Initiation Protocol), a protocol designed for the setup, management, and termination of a media session. It is one of a set of standards from the ITU-T, which defines a large set of protocols to provide audio and visual communication over a computer network.

Video Conferencing

What is a video conference?

Imagine enterprise-level video conferencing software that’s secure, easy to use and free. 3CX is a complete communications solution for businesses that offers integrated video calling. This means you don’t need to use separate apps for video. If you’re in a call, a single click invites participants to switch to video – no forward planning needed! You can join scheduled and ad-hoc meetings directly from your browser without installing any plugins. Schedule a meeting in seconds and invite participants through your preferred calendar or easily share your meeting room from your own unique URL.

How do I host a webinar?

A webinar is a video workshop that is typically conducted using video conferencing software. Webinars are delivered to a live audience that can interact directly with the webinar host via voice or chat. In light of this, hosting a webinar provides a unique opportunity for sales and support representatives to engage directly with their target audience. Use hosted webinars for: Training and E-Learning, Online Meetings and Round Tables, Introducing offers & promotions, Strategic business announcements, Q&A sessions, Product demonstrations…

What is screen sharing?

Screen Sharing or desktop sharing technology enables you to share your entire screen or a specific window with other computers. Using specialist technology or plugins, presenters can give remote users permission to view on-screen activity from their own device. Screen sharing is sometimes confused with ‘Team Viewing’ or remote desktop capabilities. Whilst all three techniques allow a remote device to view a computer screen, screen sharing technology does NOT grant permission to control or make changes to the viewed computer. For this reason, screen sharing is primarily used as a collaboration and presentation tool. In this capacity, it can dramatically improve your sales, support and customer service!

All about SIP

What is SIP?

SIP (Session Initiation Protocol) is a signalling protocol used to establish a “session” between 2 or more participants, modify that session, and eventually terminate that session. It has found its MAJOR use in the world of IP Telephony. The fact that SIP is an open standard has sparked enormous interest in the telephony market, and manufacturers shipping SIP-based phones have seen tremendous growth in this sector.

What are SIP responses?

SIP responses are the codes used by Session Initiation Protocol for communication. We have put together a list of all the SIP responses known here.

What are SIP phones?

Simply put, a SIP Phone is a phone that uses the Open Standard “SIP” to set up and manage phone calls. The actual voice is carried over an IP-based network using another Open Standard called “RTP“. Since these protocols are generically termed “VoIP” (voice-over-internet-protocol), these phones are also sometimes called VoIP Phones or VoIP Clients.

SIP Phones can be classified in 2 main categories:

Hardphones or Deskphones or Hardware SIP Phones. Softphones or Software SIP Phones.

General info (IP PBX & VoIP)

What is voice over IP?
What is a PBX phone system?
What is IP telephony?

What Some of Our Communication Systems Clients Say

We have dealt with Spire, possibly since they started, at first just for maintaining our phone system, helping remotely when possible and when we had a major failure, came out and changed a couple of controllers. When we looked at cutting costs, they set us up with a couple of IP lines to try before going the whole hog, that went well, so now we have saved a massive amount of money on calls by going over to IP for all our lines. Very pleased with the advice and help we have received from Spire.

Haybridge High School & Sixth Form

Spire communications have massively improved our internal communication within our business. They offer a superb service, have a great view of the products available in the market and are very focused on building a long term relationship. Spire were recommended to us and we would certainly pass that on if you are thinking about changing your phone system, leased line or generally any business related communications.



The way that Spire took time to understand and address our commercial concerns, make a strategy recommendation and then move on to the phased installation, was even better than we had hoped.

Barry Shaddick Tyres

Working with Spire has easily saved us over £3000 in capital costs and around £150 every quarter. Not to mention the time they have saved me by managing the expansion work and dealing with our old provider on my behalf.


J. Turner & Associates

Download our 3CX Systems Brochure

Find out more about the Communications Systems we provide.

"Our move to our new unit went without problems with the help of Spire, transferring our phone and internet lines. Most businesses I know have huge problems with this when moving. On the rare occasion that we have had an issue Spire ensure this is fixed promptly & no holding for hours for BT for us!”



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