Business phone systems & VoIP
Business phone systems and VoIP in Sussex
Cloud phone systems that work on desk phones, laptops and mobiles. We keep your numbers, set everything up, and look after your phones alongside your broadband and IT.
Book a free phone system review or call 01444 871200PSTN switch-off countdown
Analogue phone lines switch off on 31 January 2027
Openreach has confirmed there will be no extension. Copper lines and ISDN stop working, so phones, alarm lines, lift phones and some card terminals need to move to digital services first.
Book a PSTN review Read our PSTN guide →Choose your platform
Three ways to modernise your phones
We supply, set up and support all three, and recommend the one that fits how your team works.
Horizon
A full cloud phone system with desk phones, softphones and mobile apps, and no hardware in your comms cupboard.
- Call queues, hunt groups and auto attendants
- Voicemail to email and call recording
- Easy changes through a web portal
Best for: offices that want traditional handsets with modern features.
Microsoft Teams calling
Turn Teams into your phone system, so calls, chat and meetings sit in one app on desktop, mobile and compatible desk phones.
- External calls to landlines and mobiles from Teams
- Your existing numbers ported in
- Set up alongside your Microsoft 365
Best for: teams already working in Microsoft 365.
Cisco Webex calling
Reliable cloud calling with Webex apps and handsets, plus optional AI call transcription through a third-party tool.
- AI transcription of calls
- Call notes sent straight into many popular CRMs
- Webex meetings and messaging included
Best for: sales and service teams that log calls in a CRM.
Included features
Everything a modern business phone system should do
Features vary slightly by platform, but these come as standard with the systems we install.
Call queues
Callers wait in line, not on hold forever.
Out-of-hours routing
Different rules for evenings, weekends and holidays.
Auto attendant
"Press 1 for sales, 2 for support" menus.
Voicemail to email
Messages arrive in your inbox as audio files.
Call recording
For training, quality and compliance.
Hunt groups
Ring a team together or in turn.
Mobile and desktop apps
Take your office number anywhere.
Online portal
Change greetings and routing yourself.
AI call transcription
Your calls, written up automatically
With Webex calling and a third-party AI tool, calls can be transcribed and the notes sent straight into your CRM. Many popular CRMs are supported.
That means less typing after every call, more accurate records and a clear history for everyone in the team. We set it up and help you make sure callers know when calls are recorded.
Number porting
Keep your numbers when you switch
Moving to a cloud phone system doesn’t mean changing your numbers. We transfer (“port”) them from your current provider, and your customers keep calling the same numbers.
Check your numbers
We confirm your numbers can be ported, using a recent bill from your current provider.
Sign the authority
You sign a letter of authority so we can request the transfer for you.
Set up and test
Your system, handsets and apps are configured and tested before the switch.
Go live
On the agreed date your numbers move across, usually with little or no interruption.
Why ABCOM
One team for your phones, broadband and IT
Because we look after your connectivity and IT as well, there’s no finger-pointing between suppliers when something isn’t right.
Clear calls
We prioritise voice traffic on your network so calls stay clear when data is busy.
We handle the move
Porting, setup, handsets and training, planned around your business.
Backup options
4G/5G backup and call divert rules keep you reachable if a line goes down.
Local support
A Burgess Hill team, supporting businesses since 1996.
“Yann and ABCOM have been a fantastic support over many years, firstly at Albion in the Community and secondly at the Russell Martin Foundation. Responses to IT problems are always very quick and efficient.”Dr Alan SandersChief Executive, Russell Martin Foundation
“They are a responsive and knowledgeable team.”CatherineManaging Director
“They have truly helped us strengthen our operations while being mindful of our budget.”MatthewCEO
Free phone system review
Book a free phone system review
Tell us what you use today. We’ll check your lines and numbers, and recommend the right system.
What happens next?
- We check your lines and numbersIncluding anything still on the PSTN, such as alarm or lift lines.
- We recommend a systemHorizon, Teams or Webex, with handsets and apps to suit your team.
- You get a clear quoteIncluding porting, setup and a planned go-live date.
We reply to new enquiries within one working day, Monday to Friday, 8am–6pm.
FAQs
Business phone system questions
Can we keep our existing phone numbers?
Yes. Your numbers are ported from your current provider to your new cloud phone system, and you can add extra numbers, including local numbers for other areas, at the same time.
How long does number porting take in the UK?
A simple port of a single number often takes around one to two weeks. Multi-line numbers and number ranges can take longer. We give you a target date once the port request is accepted, and keep your old service running until it completes.
What happens when the PSTN is switched off in January 2027?
Traditional copper phone lines and ISDN will stop working on 31 January 2027, and Openreach has confirmed there will be no extension. Phones, and anything else that uses a phone line, such as alarms, lift lines, fax machines and some card terminals, need to move to digital services like VoIP and SoGEA broadband. We can audit what you have and plan the move.
Which is best: Horizon, Teams or Webex?
It depends on how your team works. Horizon suits offices that want traditional desk phones with cloud features. Teams calling suits organisations already using Microsoft 365. Webex suits teams that want AI call transcription into their CRM. We’ll recommend the right fit after a short review.
Can calls be transcribed into our CRM?
Yes. With Cisco Webex calling and a third-party AI tool, calls can be transcribed and notes sent straight into many popular CRMs. We set it up and can help you make sure callers know when calls are recorded.
Do we need new handsets for VoIP?
Not always. You can use desk phones, a softphone app on your computer or a mobile app. We recommend handsets based on how your team works, and some existing IP phones can be reused.
Can our phone system work with Microsoft Teams?
Yes. We can connect your business numbers to Microsoft Teams so staff can make and take calls from Teams on their computer or mobile, wherever they are working.
Does a cloud phone system include call queuing and auto attendant?
Yes. Cloud PBX systems include features such as call queues, auto attendants (IVR menus), hunt groups, voicemail to email, call recording and out-of-hours routing, all managed from an online portal.
What if our internet goes down?
Calls can be diverted automatically to mobiles or another site, and a 4G or 5G backup connection can keep your phones working. Because we also look after connectivity, we deal with the fault for you.
Do you install VoIP phone systems across Sussex?
Yes. ABCOM is based in Burgess Hill and supplies and supports business phone systems and VoIP across Sussex and the UK, with UK-based support from our own team.
Questions about business phones and VoIP?
Read our plain-English answers on business phones and VoIP, or browse every ABCOM FAQ.