A VoIP caller makes calls over the internet. Learn what that means and how VoIP calling works for your business.

A virtual phone number works over the internet, not a physical line. See how it works and what Xelion adds.

Xelion UK was named Best CCaaS Vendor of the Year at the 2026 Channel National Awards.

Find out what a hosted VoIP phone system is and how it helps your business.

We explain what a SIP line is, how it differs to SIP trunk, and how many lines you need.

See how Xelion UK celebrated its 2026 Partner Day at Warwick Castle, with activities, product insights and a partner network that keeps growing stronger.

A clear guide to VoIP setup and installation, from choosing your devices to testing your very first call with Xelion.

Xelion's VoIP phone system gives UK businesses one number, always full call control and a clear overview of every call.

What is IVR? Discover what interactive voice response means and how it helps your business answer calls faster.

Your guide to choosing a SIP trunk provider in the UK, covering what SIP trunking is and how it works.

Discover what an IP phone system is, how IP telephony works, and why UK businesses are switching from traditional lines.

Connect Microsoft Teams to the phone network with Xelion. Teams calling, Direct Routing and clear UK pricing, all in one licence.