VoIP Phone Solutions for Enterprise

Get the best enterprise VoIP phone solutions with the UK’s best enterprise PBX VoIP phone solution.

Flexible VoIP phone system for your business, tailored to you

Regardless of which voip business phone service plan you choose, you will always be able to access your cloud-based communication framework on a day-to-day basis to change, modify, and adjust your framework on the fly. You can record and track calls, design how your new telephone system operates based on the time of day and more.

The perfect VoIP phone solution for your business
The perfect VoIP phone solution for your business

Flexible VoIP phone system for your business, tailored to you

Regardless of which voip business phone service plan you choose, you will always be able to access your cloud-based communication framework on a day-to-day basis to change, modify, and adjust your framework on the fly. You can record and track calls, design how your new telephone system operates based on the time of day and more.

Enterprise Phone system Feature List

Giant VoIP provides you with over 70 intelligent features that enable you to create a truly intelligent cloud telephone system. The following is a list of important features of modernising your telephone system.

Our Enterprise VoIP phone customers are saving thousands of pounds per year. Be one of them.

Using our feature-rich cloud-based switchboard and state-of-the-art VoIP service, you can drastically reduce your call costs. No technical expertise is required. Our VoIP services are always available, can be accessed from any location, and can be customized to your specifications.

Cloud Technology

Managing your users and devices has never been easier thanks to our cloud dashboard.

Free App

Our free iOS and Android application allows you to make and receive inbound and outbound calls.

Low Call Costs

Spend less than if using a traditional solution. Avoid 'bill-shock'.

Easy Setup

Set-up, connect, and automatically provision your agency's voip phones with ease.

Plans & Pricing

Smart plans, smart pricing

No extra fees, plenty of extra features


£4.99 /mo*

*applies per seat / per extension.

** Calls are paid for on a post pay basis, extensions / users are billed in a pre-pay manner.

Flex Pro

£5.99 /mo*

*applies per seat / per extension.

** Calls are paid for on a post pay basis, extensions / users are billed in a pre-pay manner.

Enterprise VoIP Phone System

£5.99 per extension /mo

(1 Extension minimum) + Monthly Calls

Our Cloud PBX Dashboard is your cloud dashboard

Our cloud VoIP dashboard allows you to remotely manage your business’ telephony system and equipment from anywhere in the world. Monitor your calls, staff and handsets to put your mind at ease.

View and Listen to your agents
Automate reports
Fetch your companies voicemail
Sync your staffs' handsets and reconfigure
Add your operations / IT team to manage
Add and remove your user's handsets
Recieve emails for call termination
Recieve warnings when your equipment is offline

With a Virtual Landline, Remote Working Has Never Been Easier

Call from your business landline number on your mobile phone and better equip your engineers while they’re on the road – Get the most out of your business VoIP telecom solution.

Virtual Landline - VoiceCloud the perfect solution to your mobile business

Powerful features

A robust business VoIP solution with everything you need

Enterprise business phone line hardware, powering the most efficient UK businesses

HD Voice Audio

Crystal clear business VoIP phone calls with perfect voice clarity. The modern way of making a phone call with quality that is far superior to your average analogue phone line.

Call recording

Protect your business or simply store recordings for training and quality purposes. Giant’s business phone network comes equipped with native phone call recording.

Virtual Landline - VoiceCloud the perfect solution to your mobile business

Time Conditions

Take control by routing calls to the destination of your choice based on the time and date. Holidays coming up? Divert your calls until you return to the office, all year round.

Transfer your current number

To transfer your current number to Giant Communications, start the quick and easy process by clicking the button below.

Our Cloud phone system works with the best hardware

We think you should be able to use your previously purchased hardware on our network, so Giant tries it’s best to build upon it’s compatibility catelogue, if you have any concerns before your order, please get in touch with our sales team.

digium logo

Please note: Not all models produced by these brands may be compatible.


Frequently Asked Questions

Read our most frequently asked VoIP related questions.

If you are calling a regular analogue landline telephone the quality of your call quality will be slightly better than a regular analogue traditional telephone call, limited by only one side of the call being our business grade HD VoIP quality . If you are calling another voip phone you will get a much higher quality call in full business quality HD VoIP. In any event, the call quality will be superior to what you are used to in both cases. That’s exactly why we don’t tie our customers into a contract, we don’t need to – we know they will love the quality, product and service at a fraction of the cost of a regular analogue service.

Yes. The package allows us to host your numbers, lines and users as well as giving you access to your online dashboard and cloud communications centre.

There are 3 different base packages to fit all sizes and you can add extras to create your own bespoke service.

To make outbound calls you will need credit on your account or be signed up to one of our landline or mobile call packs. The only exception is when you are calling between users (i.e. just calling the extension number of another phone in the same network), which is free of charge.

Yes you can, you can have any music you like in the UK, providing you currently pay for and have a valid PPLPRS license. See here. Or click here to view their current tariffs here.

Using voip phones for business opens up a whole new world of telephony features to present an elevated image for your business. A telephone call is usually one of the main ways new customers reach out to UK businesses, let’s not waste the opportunity.

Simple transfers where your provider releases your number speedily will take between 8 – 20 days. Single lines transfer across at the lower end of this timescale & multi lines on the higher end. Please do make sure you upload your ID documents as quickly as possible & we will submit your transfer as fast as we can. You can also specify a future date if you’d prefer!

VoIP or “Voice over Internet Protocol” is a technology that uses the Internet to make telephone calls, instead of traditional analogue phone lines. That basically means if you have WiFi or a good quality 3/4G connection you can make and receive calls using data. Its a modern way of making a phone call if you like and the quality is far superior to your regular analogue phone line, although most people can’t tell the difference. A lot of people stereotype VoIP with consumer type VoIP services; there is no comparison. We operate our own carrier grade network that delivers calls to you, using business quality HD VoIP technology. The call quality is the best available from old and new technology.

Calls to UK Landline
  Pence per minute (ex VAT) Pence per minute (inc VAT) In landline minutes package
Landline - 01, 02, 03; 4p 4.8p Yes
0800 & 0808 FREE FREE No
0843, 0844 & 0845 Click to check Click to check No
0870, 0871 & 0872 Click to check Click to check No
Directory Enquiries (118707) 120.8p per call plus 9p per minute access charge 145p per call plus 10.8p per minute access charge No
Calls to UK Mobile
  Pence per minute (ex VAT) Pence per minute (inc VAT) In mobile minutes package
Main Network 7p 8.40p Yes

Please note: UK mobile calls are charged based on the number range called, not the network the number is currently active on. For example, it would cost 7p per minute to call an O2 mobile number which has been ported to Lyca mobile.

Our Access Charge for Unbundled Tariff Numbers (08, 09, 118) is 9p per minute ex VAT (10.8p per minute inc VAT).

There is a minimum charge of 1p (ex VAT). Diverted calls are charged at the same rate as dialled calls.

When comparing our prices with others, please check their minimum price and minimum duration charges – it makes a very big difference to your final bill.

Feature List

Voicemail & Mailboxes

Centralised Voicemail mailbox services.

HD Audio Calls

Make perfect crystal clear audio calls.


Conference bridge call facility & Call merging.

Zerotouch Autoprovisioning

Auto-provision your handsets with pre-programmed settings and easy VoIP system setup and synchronization.

Privacy Filters & Anonymous Calling

VoiceCloud allows you to withhold your outbound telephone numbers.

Customisable On Hold Service

Music and/or information directory assistance.

Ring Groups & Hunt Lists

Telephone Ring Group Management - Have your phone system call multiple users & devices at once.

Call Queuing

Automated Call Queueing Facility – never miss a call – facilitate multiple system calls at any given time.

Anonymous protection & Call Blocking

Anonymous call blocking and filter service.

TIme Conditions

Allowing complete control of routing calls to selected destinations and time fragments.

Live Call Monitoring

Discreet and effective live call monitoring incoming caller pre-identifications.

Email Notifications

Automatic email notifications, be notified about missed calls, voicemails, disconnected handsets and much more.

Call Recording

Session Initiated Protocol (SIP) Voice Recording.


Individualised Interactive Voice response system


Built-in Anti-fraud measures.

Group Chats

Collaborate and chat amongst your fellow colleagues, share documents, send files and work closer than ever before with teams and group chats.

24/7 Cloud Panel

Each of our VoIP telecom plans include 24/7 access for you to customize, change and adapt your telephony system on the fly in the cloud.

Call ROuting & Flows

Fully cloud manageable call routing system that allows our users to route specific calls or numbers through intelligent call flows.

Video Calls

Video call your contacts through your new call system with supported hardware and applications.

Realtime Statistics

Realtime call statistics dashboard, check total incoming calls, outbound calls, queue volume and other analytical information.

API Access

Create custom software and third-party integrations with VoiceClouds' extensive API.

Customisable Reports

Create and schedule statistic reports, giving you a regular account overview.

Find Me / Follow Me

Log into your extension from any other phone. Perfect for hot desking.

Music on Hold (MOH)

Customised On-Hold Information Directory Assistance and Music On-Hold (M.O.H.) service.

Queue Position Announcement

Tell your customers what position they're currently in the queue, better still, they're next!

Call Divert & Forwarding

Divert calls to any PSTN or VoIP SIP User.

Voicemail to Email

Voicemail to Email/Message Configuration.

Voicemail transcription (Voice to Text)

Convert voicemail recordings to text and send via email automatically.

Shared Cloud Phonebooks

Synchronize your handsets with the same cloud phone book, share your contacts amongst the rest of the team.

Live Wallboards

Check the realtime status of all your extensions/agents and call queues.

Custom Media Library

Upload and use your own media files like custom music, announcements etc

Call Waiting

Call waiting is a smart function that allows the person talking on the phone to be notified if another call is incoming.

Hold Time Calculator

Automatically calculate your callers estimated wait time and let them know how long they can expect to be in the call queue.

Call PickUp

Allow different users to pickup and takeover calls.

Mobile twinning w/ VoiceCloud

Take your landline extension on the go with Giants' FREE VoIP app.

Blind Transfer

Transfer calls to a different user/agent 'at random'.

SMS Notifications (Coming Soon)

CRM Integrations

Connect our VoIP system to popular online CRM systems.

Cloud Faxing

Send and recieve online faxes.


page other extensions


Make annoucements 

Remote Rebooting

Remote manage and reboot devices in our platform 

SIP and RTP encryption

Encrypt audio transmission between SIP devices for increased security.

Virtual Extensions

Connect multiple SIP devices to a single extension user.

Web Phone

Working away on holiday? Use our handy web phone interface.

Hot Desking

Use virtual extensions to allow your staff members the ability to assign a phone to themselves when switching desks and at non-permanent locations.

Call Parking

Push calls to virtual phone parking spaces and allow for other members of staff to 'pickup' your calls.

Call Campaigns

Run scheduled outbound call and sms campaigns with ease within your VoIP dashboard.

Spy, barge and whisper

Listen to current calls happening on your phone system anonymously or 'Whisper' instructions to your staff.

Text to Speech (TTS)

Create announcements and automated messages with over 60+ programmed voices!

Bulk SMS Campaigns

Schedule and mass send outbound SMS with campaigns.

FREE Internal Calls

Wherever your colleagues are located, using VoiceCloud allows you to make FREE internal calls to eachother.

Call Recording Transcription

Transcribe your recorded calls with speach to text functionality.

Desktop App

Use your VoIP service on your windows based PC or Mac, turn your PC into a telephone.

Inbound & Outbound SMS

Communicate with your customers or colleagues via inbound and outbound SMS.

Custom Short Numbers

Create your own short numbers to trigger basic or complex tasks.

Giant communications logo, broadband and connectivity company based in the UK
In addition to Broadband, telephone lines, and mobile sim cards, Giant Communications offers residential and business communication solutions.

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