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Cloud PBX

One number. Multiple devices.

A UK-hosted business phone system that lets your team answer the same number from desk phone, desktop or mobile.

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A woman wearing a headset taking a call at an office desk, with a colleague on a call behind her

Every feature, on every extension. From £4.20 a month. There is no higher plan to climb to.

Per extension, per month, on a 24 month term, excluding VAT. Some AI services, messaging and optional add-ons are charged separately.

25+ Cloud PBX features

Everything your phone system needs, on every extension.

Included with every extension

Call handling & routing

  • Digital Receptionist (IVR)
  • Ring Groups & Call Queues
  • Department-Based Routing
  • Time & Holiday Routing
  • Call Forwarding
  • Blind & Attended Transfer
  • Call Park & Pickup
  • Do Not Disturb
  • Conference Calling
  • Call Blocking

Numbers & caller ID

  • Multiple Outbound Caller IDs
  • Inbound Number Management
  • Emergency Calling

UK geographic, 03, 0800 and international inbound numbers, and number porting, are available and charged separately.

Recording & insights

  • Call Recording1GB storage · 30-day retention included
  • Voicemail
  • Voicemail to Email
  • Call Analytics
  • Call Logs

Administration & security

  • Admin Portal
  • Role-Based Permissions
  • Extension Management
  • Encrypted Call Signalling

Call experience

  • Announcements
  • Custom Greetings & Audio Prompts
  • Hold Music
  • Speed Dial
  • Prepaid Calling Solution

Intelligence

  • Language DetectionIncluded. No usage charge.

Integration

  • CRM IntegrationConnect the CRM your team already uses

Charged on use

AI call intelligence

  • Call Transcription
  • AI Call Summaries
  • Sentiment Analysis

Usage charges apply.

Sender ID messaging

  • Messaging with Sender ID

Send messages from the phone system under a recognisable Sender ID. This is not the bulk SMS platform, which is a separate product.

Charged per message.

Call Us 4 Free

  • Click-to-call for your website

Optional add-on · from £5.30/month

What changes

What changes on day one.

  • Fewer missed callsOne number can ring the right people across their devices.
  • No PBX hardware to manageAdd or change users without maintaining an on-site phone system.
  • Out-of-hours handled automaticallyRoute calls around opening hours, weekends and bank holidays.
  • One provider, one billAdd mobile, broadband and messaging to the same TISA account.

Your business number, wherever you work.

Want the business number on a mobile with no app to open? Pocket Office SIM puts a Cloud PBX extension on the business SIM itself.

Your CRM already knows who is ringing. The phone system should too.

Connect TISA Cloud PBX to the CRM your team already uses.

Not a fixed list. If your system has an API we can connect it, in-house and bespoke ones included. We will need API access or credentials for it.

A connection we have not built before is quoted as development work: the first 2 hours of scoping and building are included, then £180 an hour excluding VAT. The twelve platforms above carry no setup fee and no monthly charge.

Platforms teams already connect

  • Salesforce
  • HubSpot
  • Zoho CRM
  • Bigin by Zoho
  • Pipedrive
  • Freshsales
  • Pabau
  • Capsule CRM
  • Copper
  • Close
  • GoHighLevel
  • Less Annoying CRM

By industry

Different industries need different things from their phone system.

Healthcare and clinics

GP practices, dental, veterinary, physiotherapy, private clinics

Calls bunch up when the doors open, and the people who can answer are with patients.

Handle the morning surge Calls ring every free handset at once, then queue. No engaged tone. Ring Groups & Call Queues
Send patients to the right team Appointments, prescriptions and results are sorted before reception picks up. Digital Receptionist (IVR) · Department-Based Routing
Answer from any room A phone ringing in an empty consulting room is picked up from any extension. Call Park & Pickup
Open and close on schedule Surgery hours, half days and bank holidays each route themselves. Time & Holiday Routing
Change the message in minutes Record a closure or a clinic change once, then switch it on from the portal. Announcements · Custom Greetings & Audio Prompts
999 and 112 from every extension On every extension. Like any VoIP service, it needs broadband and power. Emergency Calling
Nothing waits on an empty desk A message reaches the person it was left for, not a locked room. Voicemail · Voicemail to Email
See what the phones actually did How many calls were answered, how many were missed and how long callers waited. Call Analytics · Call Logs
Control who can change what Reception, practice managers and partners each get their own level of access. Role-Based Permissions · Admin Portal
Keep the practice number The number patients already use moves with you, so printed forms still work. Number Porting, charged separately

Care and supported living

domiciliary care, supported housing, care homes

The person who should answer is on a round, in a building with no desk and often no wifi.

The business number rings a mobile Staff on shift answer on the handset they already carry. Mobile calling · Call Forwarding
Whoever is free picks up A call rings the whole on-duty group, not one phone down a corridor. Ring Groups & Call Queues
Nothing depends on one building No hardware in a property you may not own, and a new extension is added from the portal. Extension Management · Admin Portal
Cover the rota, not office hours Routing follows shift patterns, nights and weekends. Time & Holiday Routing
Calls still land if a phone does not answer An extension that cannot be reached passes the call on. Call Forwarding · Ring Groups
Messages reach the coordinator Voicemail arrives by email and is picked up between visits. Voicemail to Email
Staff present the service number Care workers ring a family back from the service number, never their own mobile. Multiple Outbound Caller IDs
999 and 112 from every extension On every extension. Like any VoIP service, it needs broadband and power on site. Emergency Calling
See the calls nobody answered Answer rate, missed calls and average answer speed, extension by extension. Call Analytics · Call Logs
Keep the numbers families already use Existing numbers transfer across, so what families wrote down still works. Number Porting, charged separately

Property, lettings and field trades

estate and letting agents, builders, electricians, plumbers, engineers

The office is a van, a viewing or a site, and a missed call can be a lost instruction.

Take the office number with you The branch number rings and dials on a mobile, so a viewing is not a lost call. Mobile and desktop calling
Present the right branch number Staff choose which approved branch number they show when calling back. Multiple Outbound Caller IDs
Split sales from lettings Vendors, landlords, tenants and maintenance reach the right desk first time. Department-Based Routing · Digital Receptionist (IVR)
No enquiry rings out A new enquiry rings every free negotiator or engineer, then queues. Ring Groups & Call Queues
Calls land even when signal does not Out of signal, the call passes to the next person or back to the office. Call Forwarding
Enquiries reach your CRM Calls log against the applicant, the property or the job automatically. CRM Integration
Know which adverts are ringing Filter inbound calls by the number they came in on, so you can see which advertised number works. Call Logs · Inbound Number Management
Keep a record of what was quoted Recorded calls settle what was agreed on price, access or timings. Call Recording
Cover evenings and weekends Out of hours calls reach the person on duty, not voicemail. Time & Holiday Routing
Keep the number on your boards and vans The number already on your signage and vehicles transfers with you. Number Porting, charged separately

Charities and helplines

charities, helplines, not-for-profits

Nobody should have to pay to reach you, and nobody should get an engaged tone.

Let callers reach you free An 0800 number means the caller pays nothing to get through. 0800 & 03 Numbers, charged separately
Or use a number that costs no extra An 03 number costs the same as a landline and uses inclusive mobile minutes. 0800 & 03 Numbers, charged separately
Ring the whole rota A call rings the whole on-duty group at once, wherever they are. Ring Groups
Nobody hears an engaged tone Callers wait in a queue with a recorded message, rather than being turned away. Call Queues · Announcements
Route by service, not by guess Advice, fundraising, volunteering and general enquiries are separated before anyone answers. Digital Receptionist (IVR) · Department-Based Routing
Volunteers keep their numbers private The caller sees the helpline number, never a personal mobile. Multiple Outbound Caller IDs · Mobile calling
Say when you are open Opening hours, campaigns and closures each run on their own schedule. Time & Holiday Routing
Nothing is lost after hours Voicemail arrives by email, so an overnight message is read first thing. Voicemail to Email
Show trustees what the line is doing Call volume, answer rates and missed calls, without counting by hand. Call Analytics · Call Logs
Control who can hear what Access to recordings and to settings is restricted by role. Role-Based Permissions

Calls to an 0800 number are free to the caller and charged to you.

Sales and recruitment

outbound sales teams, recruiters, contact centres

A team on the phone all day needs to know which conversations worked and why.

Dial without leaving the record Dial straight from the record, on a laptop or a phone. CRM Integration · Desktop calling
Every call against the right record Calls log to the candidate, the client or the deal automatically. CRM Integration · Call Logs
Review a conversation without listening to it A transcript and a summary turn a recorded call into a minute of reading. Call Transcription · AI Call Summaries, charged on use
See how a call actually went Sentiment analysis points a team leader at the calls worth hearing. Sentiment Analysis, charged on use
Coach from real numbers Answer rate, talk time and missed calls, extension by extension. Call Analytics
Present the right number Consultants show the brand, the division or the local number that suits. Multiple Outbound Caller IDs
Keep candidates and clients apart Candidate and client calls route to different desks. Department-Based Routing · Ring Groups
Nobody loses a call back Calls queue and ring the whole desk, not one handset. Call Queues
Keep an accurate record Recorded calls give you what was offered and what was accepted. Call Recording
Same extension, anywhere Home or a client site, the same number and the same reporting. Mobile and desktop calling

Manufacturing, warehousing and logistics

factories, depots, distribution, transport

Much of the work happens in a yard, on a floor or in a cab, where a desk phone is no use at all.

Reach people away from a desk Drivers, yard and floor staff use the same extension on a mobile. Mobile calling
Split operations from the office Transport, goods in, accounts and sales are answered by their own team. Department-Based Routing · Digital Receptionist (IVR)
Calls keep moving An unanswered call passes to the next person or the next site. Call Forwarding
Cover shifts, not office hours Early starts, nights and weekend cover each have their own routing. Time & Holiday Routing
Send updates without a phone call Delivery and collection updates go out as texts under your business name. Messaging with Sender ID, charged per message
Take a call at any phone on the floor A call ringing at an empty desk is picked up from the nearest handset. Call Park & Pickup
Present one number across sites Staff at any depot show the head office number or the local one. Multiple Outbound Caller IDs
Speak to overseas suppliers and hauliers Competitive international rates can reduce the cost of regular overseas calls. International calling
See where calls are being lost Which numbers and which extensions are missing calls. Call Analytics · Call Logs
Keep the depot number when you move Numbers transfer with you, so a delivery note stays correct. Number Porting, charged separately

Travel, import and export

travel agents, tour operators, importers, exporters

Bookings arrive from other time zones, and some of your calls leave the UK.

Keep international calls affordable Competitive rates for calling hotels, airlines, operators and partners overseas. International calling
Let overseas customers ring you locally Customers abroad dial a familiar local number that reaches your UK team. International Inbound Numbers, charged separately
Answer outside UK office hours Calls from other time zones reach whoever is covering, not voicemail. Time & Holiday Routing
Separate new bookings from live travel A customer with a problem in resort does not queue behind a sales enquiry. Digital Receptionist (IVR) · Department-Based Routing
Handle the booking rush Peak periods ring the whole team and hold callers in a queue. Ring Groups & Call Queues
Present the right brand Agents show the brand, the destination desk or the local number that fits. Multiple Outbound Caller IDs
Keep the booking and the call together Calls log against the booking or the customer automatically. CRM Integration
Send confirmations and updates Booking confirmations and travel updates go out under your own name. Messaging with Sender ID, charged per message
Work with customers in other languages Language detection helps you review calls with overseas customers. Language Detection, included
Take the desk with you An airport, a trade show or home, on the same extension. Mobile and desktop calling

IT services and managed support

MSPs, managed IT, support desks

The support line is judged on how fast it answers and on whether the call reached the ticket.

Answer inside the target Support calls ring every engineer on duty, then queue. Ring Groups & Call Queues
Pick up a ringing phone anywhere Any engineer can take a call ringing at an empty desk. Call Park & Pickup
Split support from sales and accounts An incident does not sit behind a billing question. Digital Receptionist (IVR) · Department-Based Routing
Let customers call from your portal A click-to-call button starts the call from your support page. Call Us 4 Free, charged separately
Put the call on the ticket Calls log against the customer record in the system you already use. CRM Integration
Prove what was reported Recordings and summaries capture what the customer described, and when. Call Recording · AI Call Summaries, charged on use
Report against your response times Answer rate, average answer speed and missed calls, engineer by engineer. Call Analytics · Call Logs
Cover out of hours Evenings, weekends and on-call rotas follow their own routing. Time & Holiday Routing
A ringing phone is never a dead end An extension that cannot be reached passes the call on to the next engineer. Call Forwarding · Ring Groups
Control access as you would any system Engineers, team leads and administrators get different permissions. Role-Based Permissions · Admin Portal

Schools, colleges and training providers

schools, colleges, nurseries, training providers

Term time, holidays, training days and the absence line all have to be answered differently.

Take the absence line off reception Absence, admissions, finance and general enquiries are separated before anyone answers. Digital Receptionist (IVR) · Department-Based Routing
Handle the morning rush Every free phone rings at once and parents queue, never engaged. Ring Groups & Call Queues
Put the calendar into the phone system Term dates, training days and holidays each run on their own schedule. Time & Holiday Routing
Announce a closure in minutes Record a snow day message once and switch it on from the portal. Announcements · Custom Greetings & Audio Prompts
Answer from anywhere in the building A phone ringing in an empty office is picked up from any extension. Call Park & Pickup
Reach staff who are not at a desk Site staff and heads of department use the same extension on a mobile. Mobile calling
Messages reach the right person Voicemail arrives in the inbox of the staff member it was left for. Voicemail to Email
999 and 112 from every extension On every extension. Like any VoIP service, it needs broadband and power on site. Emergency Calling
Control who can change the system Office staff, IT and senior leadership each get their own access. Role-Based Permissions · Admin Portal
Keep the school number The number on every letter, sign and website transfers with you. Number Porting, charged separately

Retail, hospitality and motor trade

shops, showrooms, dealerships, restaurants, hotels

The phone rings when the floor is busiest, and callers often want a department rather than a person.

Route to the department, not the floor Sales, service, parts, bookings and reservations reach the right team first time. Department-Based Routing · Digital Receptionist (IVR)
Handle the busy hour Calls ring every free handset and wait in a queue, never engaged. Ring Groups & Call Queues
Choose who pays for the call An 03 number costs a caller the same as a landline. An 0800 number puts the cost on you. 0800 & 03 Numbers, charged separately
Open, close and cover holidays Trading hours, late nights and bank holidays each follow their own routing. Time & Holiday Routing
Say something useful while they wait Record opening hours, offers or collection updates once and play them to callers. Announcements · Hold Music
One business, every branch Staff at any branch present the local number or the head office one. Multiple Outbound Caller IDs
Confirm bookings by message Reservations, service appointments and collections, confirmed under your business name. Messaging with Sender ID, charged per message
Take the call away from the counter Managers and service staff answer on a mobile using the same extension. Mobile calling
See the calls you are missing Missed and abandoned calls, with the answer rate for each extension. Call Analytics · Call Logs
Pass the call to whoever is free Move a call to another person or another branch without a ring back. Call Forwarding · Blind & Attended Transfer

If you take card details by phone, plan how recording is handled. We do not currently offer automatic pause and resume on a recording.

TISA provides business telecom services. Sector-specific compliance remains the responsibility of the organisation.

Pricing

Simple pricing, per extension.

PAYG calling

Same Cloud PBX features. Unlimited incoming calls; outgoing UK calls are 5p/min.

£4.20per extension / month24 month term · ex VAT

12 months £4.50 · 30-day rolling £6.40

Unlimited UK calling

Same Cloud PBX features. UK landline and mobile calls included, subject to a 5,000-minute fair-use allowance.

£8.50per extension / month24 month term · ex VAT

12 months £9.00 · 30-day rolling £12.80

Additional charges

Activation

£10.64 per extension on 12- and 24 month terms · £15 on 30-day rolling.

Numbers

£3.30/month per UK landline or 03 number · £10.64 activation.

Recording storage

1GB included · additional storage from £5.30/month.

International calls

Charged by destination.

View international rates

Price changes

Your contract determines whether an annual price adjustment can apply. Any applicable change is handled in line with your contract terms and notified in advance.

Read pricing terms

TISA reviews prices once a year on 1 April. If you are a micro business, a small business or a not-for-profit, the categories Ofcom GC C1 protects, a review never changes what you pay during your contract. For larger businesses our terms allow one annual adjustment of CPI plus 3.9 percentage points, applied on 1 April and notified at least 30 days in advance. New pricing otherwise applies only if you choose to renew. Billed monthly per extension. See the business terms.

Create your account Build your package

Switching to TISA

You keep the number your customers already ring.

Tell us what you have

Tell us your users, numbers, handsets and how calls work today.

We build and test everything

Extensions, routing, ring groups and opening hours are configured and tested before your team logs in.

We move your numbers

We plan your number transfer around an agreed switch date. Your existing service stays live until the move.

We get your team ready

We help your team get started, then our UK support team stays with you after go-live.

Still in contract? Talk to us anyway. We can plan the move around your existing contract end date.

How number transfers work

Questions

Questions businesses ask before switching.

Can I keep my existing business phone numbers?
Yes. UK landline and VoIP numbers can be transferred to TISA Cloud PBX, so you keep the numbers you already advertise. You agree the date the transfer happens, and your existing service stays live until it completes. Additional UK numbers are charged separately. How number transfers work.

How long does switching to TISA usually take?
Most of the work happens before your switch date, because extensions, routing and opening hours are configured and tested first. The part with a fixed timetable is the number transfer, and UK landline and VoIP transfers typically take 7 to 10 working days. You agree the date the numbers move.

Can we switch if we are still in contract with another provider?
Yes, and it is worth talking to us early. We can build and test your system, then plan the number transfer around your existing contract end date. Any notice period or early termination charge with your current provider is a matter between you and them.

Can staff answer the same business number from mobile and computer?
Yes. One extension can ring a desk phone, the desktop app and the mobile app together, so the call is answered wherever that person is. Mobile and desktop apps are included with every extension.

Are the Cloud PBX features included on every extension?
The core Cloud PBX features are, on every extension, and there is no higher plan to buy. Choosing PAYG or Unlimited changes how calls are charged, not which features you can use. Some services are charged separately: AI call intelligence, business messaging, Call Us 4 Free and additional numbers.

Can TISA connect Cloud PBX to our CRM?
Twelve popular CRM platforms connect from the portal using your own API credentials, with no setup fee and no monthly integration charge. TISA can work with other CRM systems too. The first 2 hours of technical scoping and development are included, and additional development is £180/hour excluding VAT.

What happens if our internet connection goes down?
The phone system itself runs in a data centre rather than in your office, so it is not affected by your broadband. Phones and computers at the affected site lose service until the connection returns, while an extension using the mobile app on mobile data does not depend on your office broadband at all. Emergency calls to 999 and 112 cannot be made over Cloud PBX during a broadband or power failure, so keep a mobile or another line available. Talk to us about how you want inbound calls handled if a site loses connectivity.

View all Cloud PBX questions

Talk to us

Half an hour is usually enough.

Tell us how many people you have, which numbers you need to keep and when your current contract ends. We’ll work out the right setup, what it costs and what moving involves. No obligation.

Get a quote Book a meeting
Call 01908 737 500Monday to Friday, 9.30am to 5pm WhatsApp Message usWe will come back to you Email hi@tisa.oneSend us your current bill and we’ll show you what could change.

Our own UK team, in Milton Keynes. Live service status, including the 99.99% uptime target, is published at status.tisa.one.