On-Premise Phone Systems

With solutions for small office telephone systems through to multi-site enterprise, we have a telephone system to fit every organisation with the latest Mitel phone system or iPECS phone system in cloud or on-premise PBX format.

On-Premise Phone Systems

In today’s competitive business environment, the ability to effectively connect with customers through the latest SIP and VoIP technology is critical. A modern PBX or Cloud Solution should offer effective methods of collaborating with colleagues and clients to deliver exceptional levels of colleagues and clients to deliver exceptional levels of profit.

With solutions for small office telephone systems through to multi-site enterprise, we have a telephone system to fit every organisation with the latest Mitel phone system or iPECS phone system in cloud or on-premise PBX format.

Flexible Solution

That can easily scale to address an evolving business.


Comprehensive suite of embedded productivity & business applications.

No more out of office

For employees on the go & support for the growing trend.

Mitel MiVoice Business

Mitel Telephone Systems

Cavendish has a direct and long-term relationship providing Mitel Telephone Systems, giving us vast experience in the complete range of Mitel Phone Systems. Whether a small business phone system, medium or large enterprise our own in house engineers, fully trained to the latest accreditation, will configure install and maintain all our systems.

Modern business communications demands a host of tools, including desk and mobile phones, email, instant messaging, voicemail, presence information and audio, video and web conferencing. Bring these tools together in an integrated Mitel Phone System that facilitates seamless communications anywhere, any time over any device.

Check out our Mitel Phone Systems in more detail, the MiVoice Office 250 is ideal for small office phone systems whereas the MiVoice Business will scale to the largest of business requirements

“It was clear that Mitel could offer a cost-effective IP communications solution and one that didn’t compromise on features and capability”

-Jon Martin, ICT Project Manager, East Sussex County Council

iPECS Telephone Systems

iPECS UCP – Unified Communications Platform for SME and Enterprise

iPECS UCP is Ericsson-LG Enterprise’s unified communications platform designed to help organisations communicate and collaborate with all of their partners. iPECS Unified Communications helps people across your business be more productive and efficient regardless of their location or chosen device.

iPECS Unified Communications capability is built in to UCP. Users can use voice, video, instant messaging, conference calls and visual voicemail all on one simple and easy to use platform. UC is designed to be intuitive and provide your team easy to use tools and features.

iPECS UCP helps you to make the most of the latest network technologies, such as SIP, optimise call costs using WiFi or use in-built voice conferencing to save on external conference services.

Why Choose an Office Telephone System?

  • Higher level of control to manage and configure the system
  • More choice of applications
  • Applications can be tailored to suit your business needs
  • Lower cost of ownership
  • More resilience by deploying SIP trunking alongside ISDN
  • More flexibility to integrate IP enabled business processes
  • Deploy more complex applications like contact centre solutions
  • Benefit from lower cost call bundles with SIP Trunking
  • SIP Trunking offers good fraud protection & business continuity
  • Upfront costs of deployment can be removed with Leasing

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    SIP Trunks

    The adoption of IP, or Internet based telephony, over recent years has driven a significant change in the delivery of business phone lines. Businesses are now buying SIP Trunks rather than traditional ISDN lines, to support both on-site and cloud-based IP telephony solutions.

    Choose Cavendish for your Telephone Systems Maintenance

    • Team of in-house engineers
    • 24/7 support available
    • ISO 9001 quality standards
    • CHAS accredited

    Applications and Services

    Voice Messaging for Phone Systems

    Voice Messaging

    An effective way to manage calls when you already on a call, in a meeting or away from the office.

    Call Recording for Telephone Systems

    Call Recording

    Capture essential call information for future reference and access recordings easily online.

    Call reporting

    Call Reporting

    Manage your business more efficiently with flexible and easy to use reporting capabilities.

    Fixed to Mobile Integration for Business Telephone Systems

    Fixed Mobile Integration

    Never miss a call with one phone number and one voice mailbox.

    Presence and Availability for Small Office Phone Systems

    Presence and Availability

    Monitor contacts’ availability for chat, call or videoconference on your PC, tablet or mobile.

    Call reporting

    CRM Integration

    Our phone systems integrate with the most popular leading CRM solutions.

    Protect your Phone System from fraud

    Fraud Protection

    Our service limits your telecom fraud liability to a maximum of £500.

    Protect you Office Phone System from Hacking


    Our cost-effective solutions monitor your calls against pre-determined rules and terminate any illegal call traffic.

    Contact Centre Solutions

    Contact Centre

    Available in a range of sizes to suit the demands of any business.

    Audio Web Conferencing

    Audio/Web Conferencing

    Save time and money with comprehensive audio conferencing and web collaboration.