Hi, I'm Stack the business telecoms platform.

We're the innovative communications company that delivers an affordable and reliable service for businesses everywhere.

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Whether you need automated menus, call queues, voicemail, or time-based routing of your calls, Stack makes it easy to get started.

It's great to know exactly what to expect when you answer the phone, so all Stack phones include caller ID as standard.

With Stack you can give everyone in the office their own direct number, so callers can get straight through to the right person.

NO LONG CONTRACTS HERE No Commitments here .. our phone services are monthly rolling.  Migrate to Stack, save money and get a better service.

Cloud phone services for businesses of all sizes

Call forwarding

£2.99 Just need to forward calls from a landline to your mobile? Look no further - includes a number.
  • Included 01, 02 or 03 phone number
  • Numbers any UK geographic area
  • Easy to set up, easy to use
  • UK-based support
Get Started


£4.99 A complete phone solution for businesses of all shapes and sizes. RECOMMENDED
  • Own local or national phone number
  • Add unlimited calls for just £9.99
  • Access to advanced features
  • UK-based support
Get Started

SiP Trunks

£3.99 Running your own PBX? Our SIP trunking allows you to make & receive calls with ease.
  • Start with 4 channels and add more
  • Cheap call rates or buy a bundle
  • Free 0330 number included
  • UK-based support
Get Started

Our cloud phone system is bursting with features

All powered by our in-house developed cloud platform, we've got all the features you'll ever need from your business phone system - from call queues & groups to fax to e-mail & conference rooms.

Call queues & groups

Call queues & groups allow you to easily handle multiple incoming calls at the same time. Place callers into a queue and answer them in the order they arrived.

Voicemail boxes

When you’re on the phone or out of the office, easily accept voicemail messages from your callers and receive them by e-mail, through our website or on your phone itself.

Menus & auto attendants

Knowing exactly what a caller wishes to speak about before answering can be very handy. With our IVR menu feature you can ask callers to choose from options when they ring.


The shared address book allows you to quickly access common phone numbers but also allows you to see the name of your callers whenever a new call comes in.

Out of hours

Our time-based routing feature allows you to change what happens to incoming calls based on the time of day. For example, when you’re closed, you can easily send callers to voicemail.

Advanced call routing

We have a range of tools to help route calls for you most efficiently. In addition to time, you can use presets and the caller’s incoming number to choose where to send the call.

Conference rooms

Set up your own conference rooms where callers can dial in, enter a PIN and all speak together. This can save on huge call costs usually imposed by other meeting providers.

Music on hold

Upload your own music or audio files to play to your callers when they’re on hold or in one of your queues. An ideal way to market to your customers while they’re waiting.