CallSwitch is TSI’s leading cloud-based phone system and collaboration software that is streamlining business communications and enabling greater productivity, reliability and customer satisfaction

Using the latest developments in cloud technology, CallSwitch facilitates seamless communication and collaboration throughout your business – whatever your number of users or different locations. Quick to install and with minimised CapEx payment, the number of users can instantly scaled up as your business grows.

The benefits of CallSwitch include:

  • One number across all of your devices (desk phone, laptop, PC, tablet, mobile phones)
  • Powerful HD video conferencing and messaging
  • Mobile & flexible working
  • Integrate with Microsoft Teams and/or your CRM system (including SalesForce, BullHorn, Dynamics, Sugar, ZenDesk, ZOHO, and many more)
  • Video conferencing
  • OpEx payment structure
  • Intuitive app for your employees and devicess
  • Enhanced customer experience and ROI

Empowering your team to be more responsive and consistent throughout all instances of communication will deliver significant benefits for both your business and customers.

We tailor the solutions of CallSwitch to your unique needs, with transparent and flexible costs – you only pay for the licences that are relevant to you.

TSI are proud of our level of service.  Our friendly UK based support team are always here to help, whether it’s jargon free troubleshooing, explaing how to do something, or just a chat about how best to run the communications within your business.

We can also provide you with advanced internet monitoring software – keeping your systems running smoothly and your employees and clients completely satisfied.

Interested to learn more and receive your quote?

Leave your details by filling in the form and we will call you back, at a time convenient to you, to discuss your options. Alternatively you call us direct today on 0808 178 9595 and a member of our expert account team will guide you further.

Key business benefits

One Number

Every person in your business will be contactable anywhere, anytime on just one number.


Everyone in your business can work remotely – business continuity is built-in.

One Supplier

With TSI you have one supplier, one solution and one bill for all your communication needs.

Collaboration/ HD Conferencing

Full collaboration and conferencing tools integrated with your UC system.  Combine with the power of MS Teams, and free integration with your CRM.

Disaster Recovery

Ensure your team can work from anywhere – minimising disruption and lost hours of work in any scenario.

Reduced CapEx

With transparent pricing and all your communications in the cloud, Anywhere dramatically reduces your CapEx.

24/7 Network Monitoring

We can offer you on-going maintenance and proactive 24/7 monitoring. We’ll usually resolve problems before you even know about them.

Request a Call Back

What size is your business?