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Business Phone Systems


Business Phone Systems

Business Phone SystemsClick here for more info

Business Broadband

Business Phone SystemsClick here for more info

Business Mobiles

Business Phone SystemsClick here for more info

Structured Cabling

Business Phone SystemsClick here for more info

What our customers say

  • Cavendish has always provided excellent service and I am now talking to other schools in the PSBP who are looking like they will be working with you!- Tanya Neil

    Aylesham Primary School
    Aylesham Primary School
  • The guys who worked on site have provided an exemplary service. They were both professional and courteous throughout. The work has been completed to a high standard. Many thanks for all the hard work and for completion ahead of schedule.

    Local Govt supporting local business ESCC - Cavendish
    East Sussex County Council
  • Their technical knowledge is great, and it makes such a difference to work with a local supplier who is easy to contact. We know the team and they are easy to reach when we have a question or a problem. I would recommend Cavendish Communications without hesitation.” – Henry Branson, Assistant Director for Business Transformation

    Mitel Business Phone Systems
    Lewes District and Eastbourne Borough Councils
  • The engineer attended site before we started work which was very helpful so it didn’t interfere with our working day too much. He worked quickly and tidily and explained exactly what he was doing. We have not had a problem since he left. Cavendish are quick to resolve any issues that we have – I would not hesitate in recommending them.

    Best Panasonic Phone System from Cavendish
    Poulton Remedial Services Ltd
  • A last minute cry for help during a very busy period for the Cavendish engineers was handled promptly and efficiently. They look after us very well which is very much appreciated. The engineers and our account manager are always very knowledgeable, willing to help and probably smile through gritted teeth when we pile on the pressure. This latest cry for help was a good example of the result of having a good working relationship and the professionalism of the team.

    Best Phone Systems for Schools in Sussex from Cavendish
    Downlands Community School
  • Couldn’t ask for a better service!

    Business Broadband & Fibre Broadband
    Sutton Valence Primary School
  • You have set yourselves a high standard, we now expect a superb customer experience every time!

    Small Office Phone System for Trimline from Cavendish
    Trimline Group
  • Great customer service!

    Best business phone systems UK
  • As always when there is an issue Cavendish excel at keeping me informed as to what is happening and when it is likely to be resolved. I always feel like I am in safe hands. We have been a customer for a number of years, their service has always been absolutely first class. I would not hesitate to recommend Cavendish.

    Telephone Systems for The Health Sector from Cavendish
    Custom Pharmaceuticals
  • It’s a great feeling knowing that you have a safe pair of hands looking after your comms and data. A bit like having International Rescue on your team. Comms are crucial to us so I’m so glad we decided to work with Cavendish. F.A.B!

    Cloud Phone Systems VOIP Phone Systems from Cavendish
    LDA Design
  • We have been with Cavendish for many years and their service is always 10/10. This is why we would never change supplier!

    Office Phone Systems multi line for Small Business
    Small Loads Ltd
  • Response and requests carried out both efficiently and promptly. Thanks for a good service when setting up our new system!

    Horizon Hosted Cloud Phone System Cavendish
    ICL Solutions Limited
  • A much, much, much better service than BT!

    best small business phone system for Solicitors in Sussex
    Burtonwoods Solicitors
  • Our issue was dealt with promptly and we were regularly updated. Before the support request was closed we got a call to check that we were happy that the issue had been rectified to our satisfaction.

    Business Phone Systems for Schools in Sussex
    Hilltop Primary School
  • We have been very pleased with the personal service provided.

    Business Phone Systems for Solicitors from Cavendish
    Chamberlins Solicitors
  • Excellent service as always, all followed through and Cavendish were able to action my query straight away.

    Phone Systems for the NHS with Cavendish
    Bridge Medical Centre
  • What a great team! Right from the outset to go-live they have been patient, professional and supported us every step of the way. I’d recommend Cavendish to anyone who needs a phone system – they are exceptional at what they do.

    voip telephone systems for Lewes District Council
    Lewes District Council
  • Really appreciate all the support over the years and especially during the major building works. We’re also really pleased with the money we’re saving since having SIP installed. Many thanks!

    Small office telephone systems for Serviced Offices
    Community Base
  • I’ve found the Cav team very friendly & extremely helpful. Nothing is too much trouble for them, & they always follow up with a call or an email to make sure the issue is resolved.

    Mitel Phone Systems from Cavendish based in Sussex
    Flight Directors
  • We are always pleased with the service from Cavendish. Our phones are great, the support service is fab, and the personal contact is first class.

    Phone Systems for Estate Agents from Cavendish
    Open House Estate Agents

Business Phone Systems

As a leading supplier of Business Phone Systems in the UK we know that in today’s competitive environment, the ability to effectively connect with customers through the latest SIP and VoIP technology is critical.

Modern Office Phone Systems need to offer effective methods of collaborating with colleagues and clients to deliver exceptional levels of customer service, improve business efficiency and increase profit.

With solutions for small office phone systems through to multi-site enterprise business telephone systems, we have the best phone system to fit every organisation.  Choose from the leading suppliers on the market with the latest Mitel Phone System or Panasonic Phone System installed and maintained by our own in house engineers.

Business Phone Systems - Mitel

Cloud Phone Systems MiCloud & Horizon

Cloud Phone Systems

What do you get with a Cloud Phone System from Cavendish?

    • A choice from the top three Cloud Phone Systems on the market.
    • A communication system that the modern employee expects.
    • Enhanced productivity and Innovation.
    • Collaboration enabling information sharing.
    • Connection across multiple devices providing presence and availability.
    • Great customer service and support.

Check out our Cloud Phone Systems pages and find out why you should consider moving to the cloud.

Business Phone Systems & Broadband from Cavendish

Business Broadband & Fibre Broadband from Cavendish

Business Broadband

Cavendish specialises in providing fast and reliable Business Broadband from ADSL2 to Fibre to the Cabinet (FTTC) or Fibre to the Premises (FTTP).

In addition, with the need for higher speeds and a dedicated internet connection we are seeing more customers installing Private Fibre Ethernet Circuits.

All of our Business Broadband including Fibre Broadband come with unlimited data usage and can be tailored to suit specific needs to optimise voice, video and data requirements including SIP Trunking.  All our business phone systems are now deployed with voice traffic being routed across data networks so the quality of the internet access and expertise to deploy integrated services is paramount.

Business Mobiles

Mobile fleet management with personalised service and support.

Multiple networks on one bill, flexible sim only contracts.

World-class service and support for your business mobiles.

Business Mobiles

Business Office WiFi

Business WiFi

Our Business WiFi solution can be deployed in every organisation small or large.  With everyone needing internet access on all their devices throughout the office, high quality and reliable WiFi is a crucial business requirement.

Cavendish provides a fully managed solution paid on a monthly subscription, per access point, with no upfront costs.  Our service is wired in using structured cabling to ensure quality and provides a fully meshed solution which enables fast roaming without re authentication.  That means you can move around your office using voice or video applications without losing connection.

Business Phone Lines

Save money and enjoy superior support for your existing Business Phone Lines. Our experienced team will ensure a smooth and seamless transition to our billing platform, planned and project managed through our established migration process.

Cloud Phone Systems

Structured Cabling

Structured Cat5 Cabling

Cavendish is a leading provider of Cat5 cabling in the South East and has an excellent reputation for quality provision second to none.  Cavendish works very closely with the local public sector organisations providing  cabling to many Schools in Sussex and the South East, Local Government, Sussex Police and The National Health Service.

If you are moving to new premises or updating your existing business phone systems it is important to ensure you have the necessary standard of cabling and a highly qualified team to deploy it.

Some of the industry sectors we support

Take a look at our tips and advice below or simply give us a call on 0800 206 2107









Business Phone Systems - Moving office

Moving your Phone System

Adjust to the changing needs of your organisation.

Moving Offices
Adding Offices

Business Phone Systems - Updating Technology

Renew your Phone System

Enhance productivity and future proof your communications.

System Replacement
Adding Applications
Reducing Costs

Business Phone Systems - Excellent Customer Service

Support your Phone System

Enjoy superior support and a single point of contact.

Better Service
Switching Suppliers
Single Supplier

Why choose Cavendish Communications?

Cavendish Communications provides the full range of telecoms solutions to meet the needs of any modern business from cabling to business phone systems & business broadband.

Since 1990, we have built a strong reputation for superior customer service and are very proud to support over 2500 organisations in both the public and private sector.

Business Phone Systems from Cavendish based in Sussex