# Criterion Systems Ltd: Great Value Business Phone Systems

> Criterion Systems Ltd offer a VoIP \(Voice over Internet Protocol\) phone system known as 'Horizon VoIP' to save you money and offer you the best services\.

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## Pages
- [Home](https://criterionsystems.co.uk/): Criterion Systems \| Business Phone Systems \& Telecom Solutions UK
- [Downloads](https://criterionsystems.co.uk/downloads/)
- [Cisco Webex](https://criterionsystems.co.uk/hosted-telephony/cisco-webex/)
- [Wallboard](https://criterionsystems.co.uk/wallboard/)
- [Contact Us](https://criterionsystems.co.uk/contact-us/)

## Files
- [Cisco Desk Phone 9800 Series](https://criterionsystems.co.uk/wpfd_file/cisco-desk-phone-9800-series/)
- [Webex for Gamma Brochure](https://criterionsystems.co.uk/wpfd_file/webex-for-gamma-brochure/)
- [Avaya Workplace \(Windows\)](https://criterionsystems.co.uk/wpfd_file/avaya-workplace-windows/): Avaya Workplace Client Software for Windows
- [Avaya Workplace \(Mac OS\)](https://criterionsystems.co.uk/wpfd_file/avaya-workplace-mac-os/): Avaya Workplace for MacOS Client Software
- [Criterion Connectivity Brochure](https://criterionsystems.co.uk/wpfd_file/criterion-connectivity-brochure/)

## Categories
- [blog](https://criterionsystems.co.uk/category/blog/)

## WP File Download
- [Product Brochures](https://criterionsystems.co.uk/wp-file-download/product-brochures/)
- [User Manuals](https://criterionsystems.co.uk/wp-file-download/user-manuals/)
- [Software](https://criterionsystems.co.uk/wp-file-download/software/)

## Optional
- [Sitemap index](https://criterionsystems.co.uk/sitemap_index.xml)