Hosted PBX

We have provided hosted phone systems from 1 extension to over 300 handsets spread around the UK

On-Site PBX

On premises PBXs are available with various connectivity options to the PSTN or hybrid VoIP/PSTN systems

SIP and IAX Trunks

We have thousands of SIP and IAX trunks available for our customers

Lease lines and broadband

As a Telco, we are able to provide a wide range of connectivity such as PSTN, ISDN, lease lines and broadband


We have a highly skilled team with years of experience in customising systems and reports

Local and international numbers

Antheus can supply inbound numbers for any area code in the UK as well as non-geographic ones. We can also setup international numbers for most countries

Our passion is to improve your business performance by providing a combination of sound IT advice gained from 20 years experience, with ‘hands-on’ technological expertise.

Our focus is on increasing your productivity and business efficiency. With pioneering work with VoIP (Voice over IP) and WebRTC technology, we can also provide you with the additional benefits of enhanced customer service – whether to businesses or consumers – and significantly reduced telephone call charges.