SIP Trunks for Contact Centres

A dedicated network for high-volume inbound and outbound calls.

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Trusted by over 8,000 businesses
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Built for high capacity

Our High Volume SIP Trunks are built specifically for customers needing high call-per-second and high channel capacity.

Integrating directly with your existing PBX, our high-volume SIP Trunks allows you to take advantage of the cloud-based solutions, without the need to replace your existing equipment.

High Speed
Custom architecture

Segregated and scalable infrastructure designed to reliably support high levels of CAPS

Dedicated interconnects

An isolated network for high volume traffic, meaning maximum reliability at all times

High security

Our dedicated Network Operations Centre monitors performance at all times

Industry recognition and accreditations
Comms National Awards
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ITSPA Awards
Best Companies
Fast 50
Sparkies Awards
BSI 27001

Trusted by our customers

We pride ourselves on finding solutions that help our customers, whatever their expertise.

We work with in-house IT functions with exacting requirements, to business owners and office managers who are new to telephony and communications.

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"We wouldn’t have expanded without Gradwell and VoIP. I’m still amazed that setting up an international operation and connecting our offices worked so quickly.”
Brian AshDirector
Brian Ash
“It was cost effective, relatively straight forward to set up and allowed us to set up a virtual office almost overnight...keeping overheads significantly down."​
Clare GallowayDirector
Clare Galloway
“Gradwell are providing the backbone of what we need to operate, along with support framework to help us in times of need. In short; our experience has been terrific.”
Jon MusslewhiteDesktop Engineer Lead
Jon Musslewhite

Join thousands of businesses

We’ve helped organisations from across the UK take advantage of cloud-based communications tools. Can we help you?

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