Keep your phone system. Keep your CRM. Change nothing.
The booking lands in the system you already run. Prime Assist reads your diary and writes the outcome back, on any phone system that can forward a call. No hardware, no migration.
Every
listing marked live or in progress
Any
phone system that can forward a call
No
switching cost, no hardware to buy
3
ways to connect, all reversible
Live integrations
Do I have to change my phone system to use Prime Assist?
No. Prime Assist is telephony agnostic: it works with any phone system that can forward or route a call, which in practice means all of them. Traditional landlines, on-premise PBX, SIP trunks and cloud platforms such as RingCentral, 8x8, GoTo, Vonage, Dialpad, Twilio, Telnyx, Plivo, 3CX, Asterisk, Cisco, Avaya, Genesys, NICE and Five9 are all supported. You keep your numbers, your handsets and your existing contracts, and a growing directory of integrations, each marked live or in progress, covers the CRM, calendar and support tools you already use.
The reason most voice AI projects stall is not the AI. It is the migration.
Ask a vendor what has to change before you see value. If the answer involves a new phone provider, ported numbers, new handsets or a data migration, the project now needs a budget, an IT owner and a quarter of someone's life. We removed that step on purpose.
Nothing gets ripped out
Prime Assist sits alongside your stack, not in place of it. Your telephony contract, your numbers, your CRM and your diary all stay exactly as they are. If you switch us off, everything reverts to how it was that afternoon.
No IT project required
The usual setup is a call divert and an authorised connection to your diary. That is a configuration change your existing provider can make in minutes, not a procurement exercise.
Start narrow, widen later
Begin with out-of-hours only, or overflow only, on one line. Prove it on your own calls, then move it to first answer. Compatibility is what makes that gradual path possible.
Find your system.
Live and in-progress integrations across telephony, CCaaS, CRM, calendars, support, AI and automation. Statuses are marked honestly: we do not list something as live before it is.
Programmable voice. Use your own Twilio account and numbers.
Omnichannel cloud phone system and contact centre.
Cloud voice and contact centre for mid-market and enterprise.
Cloud phone system and customer engagement software.
Vonage
Cloud communications and customer workflow platform.
Ooma
Business VoIP for small and mid-size organisations.
Telnyx
Carrier-grade voice connectivity and messaging.
Plivo
Cloud communications platform for customer engagement.
Asterisk
Open-source PBX. Common in self-hosted UK setups.
Open-standards PBX, on-premise or hosted.
Cisco
Enterprise voice and contact centre platform.
Contact centre as a service with agent and customer tooling.
Cloud contact centre and customer experience platform.
Five9
Cloud contact centre with digital engagement.
NICE
End-to-end customer service and workforce platform.
CloudTalk
Remote-ready call centre software for sales and support.
Customer communication platform for distributed teams.
Cloud phone system with customer intelligence.
Collaborative phone system for small teams.
HubSpot
Contacts, deals and tickets updated live from the call.
Salesforce
Enterprise CRM. Records and activities written on completion.
Pipedrive
Sales CRM and pipeline management.
Zoho
CRM and business suite for growing organisations.
Freshworks
Customer engagement across support, sales and marketing.
Monday.com
Work operating system, used as a lightweight CRM and job board.
ActiveCampaign
Email marketing, automation and CRM.
GoHighLevel
Agency CRM and marketing platform with sub-accounts.
Bitrix24
Online workspace with CRM, tasks and telephony.
Practice management for dental and clinical settings.
Healthcare CRM for clinical and operational workflow.
Practice Better
Practice management for health and wellness clinics.
Job management for field service and trades businesses.
Field service management and CRM for service professionals.
Sales and lead management for property teams.
CRM and transaction management for estate agency.
Lead management for mortgage brokers and insurers.
Microsoft Calendar
Microsoft 365 and Outlook diaries, read and write.
Google Calendar
Google Workspace diaries, read and write.
Cal.com
Open scheduling. Bookings written straight to your calendar.
Zendesk
Support tickets raised and updated from the call.
Intercom
Customer messaging for sales, marketing and support.
Outreach
Sales execution platform for market-facing teams.
Gong
Revenue intelligence. Call records and transcripts pushed across.
Sales intelligence and engagement platform.
Data enrichment and automation for go-to-market teams.
Anthropic
Claude models for reasoning inside call handling.
Bring your own OpenAI key to power your assistant.
ElevenLabs
Natural voice synthesis, including custom brand voices.
Microsoft cloud AI and speech services, extensible by design.
Zapier
Thousands of apps through Zapier, with no bespoke development.
Make.com
Visual workflow builder for multi-step automations.
n8n
Open-source workflow automation for technical teams.
Open-source automation and scheduling connector.
No-code application platform, connected via API.
EMIS
GP clinical system. Appointment booking and cancellation.
GP clinical system. Rota-aware booking against real availability.
GP clinical system. Booking and structured call records.
Assurance-gated demographic lookup and verification.
Dentally
Dental practice diary with treatment-aware durations.
Nothing matched that.
That does not mean we cannot connect it. If your system has an API, a webhook or a Zapier, Make.com or n8n connector, it is in scope.
Ask us about your systemSame setup. Just add Prime Assist.
All three are reversible in an afternoon, and none of them requires you to leave your telephony provider.
01
Call forwarding
You divert your existing number to Prime Assist, either for every call, only after hours, or only when your lines are engaged. Works with any landline, mobile or cloud system.
Best for: getting live this week with nothing to configure beyond a divert.
02
SIP or PBX connection
Prime Assist joins your existing SIP trunk or PBX as a routing destination, so it lives inside the call flow you already have alongside your queues, groups and out-of-hours rules.
Best for: multi-site setups, contact centres and anyone with existing routing logic worth keeping.
03
A dedicated new number
Prime Assist answers a brand new line while your main number stays untouched. Useful for a specific campaign, a bookings line, or a pilot you want to keep fully separate.
Best for: proving it on real callers without touching the main switchboard at all.
Number porting is available if you want it later, but it is never a prerequisite. We would rather you keep the option to walk away.
UK clinical systems, where the booking lands in the record.
Business software integration is an engineering task. Clinical system integration is an engineering task plus a safety case, an assurance process and a named accountable clinician. These five have dedicated pages because the detail matters. Dentally is live. EMIS, SystmOne and Vision are in progress, connecting through NHS England's IM1 pairing route, and so is NHS Spine.
Your system is not on the list.
That is usually a five-minute conversation rather than a blocker. Three routes cover almost everything:
- A direct API or webhook. If your system exposes one, Prime Assist reads availability and writes the outcome straight into it.
- An automation connector. Prime Assist reaches thousands of apps through Zapier, and more through Make.com and n8n, with no bespoke development.
- Structured handoff. Where there is genuinely nothing to connect to, Prime Assist still answers, triages, routes and escalates, and delivers a structured record by email or webhook.
The last route is the honest one. It is less valuable than a real integration, and we will tell you so rather than overselling it.
Tell us what you run
Send us your phone system and your CRM or diary, and we will tell you which of the three connection routes applies and roughly how long it takes. No discovery sequence.
Integration scope is confirmed in writing before launch, covering any diary, CRM or practice system with an API, plus anything else with a Zapier connector.
Compatibility questions.
Ask us something elseDo I need new handsets or hardware?
No. There is nothing to install on a desk or in a comms cupboard. Prime Assist runs in the cloud and receives calls that your existing system routes to it.
Do I have to port my numbers?
No, and we would usually advise against it at the start. A divert keeps you in full control and reversible on the same day. Porting is available later if you decide you want it.
Can it run only out of hours or only on overflow?
Yes. Conditional diverts mean Prime Assist answers only when your lines are engaged, only outside opening hours, or only on a specific number. You widen it once you trust it.
What does an integration actually do?
Two things: it reads, so the agent knows real availability, real prices and the caller's real record, and it writes, so the booking, job or enquiry lands in your system while the caller is still on the line. Without both, you are back to message taking.
What does "in progress" mean on a listing?
That the connector is being built or tested and is not yet ready to use on your calls. We label it rather than listing everything as live, and on your demo we will tell you plainly where it stands.
Is my data safe crossing between systems?
Prime Assist is UK-built, with a UK or EU processing region committed by contract, and integrations use authorised, permissioned connections rather than shared credentials. See the trust page for the detail. Ask on your demo for the documents we can share, and we will tell you plainly what is complete and what is not.
Three ways to test us. Only one of them involves talking to a human.
Buying voice AI on a slide deck is how people end up with something that fails on the first awkward caller. So we made the product itself the easiest thing to try, and put the commitment in your hands rather than ours.
Hear it for yourself, right now
Ring the line and talk to Prime Assist the way one of your callers would. Ask it to book you in, then try to catch it out. No form and no email address.
Call +44 20 3747 7785We only get in touch if you ask us to.
Put a number on your missed calls
Two questions show the calls you miss today next to the same calls with Prime Assist, where every call is answered at once. Add your own value to see what they are worth.
Run my numbersNo email needed: nothing you enter leaves your browser.
Watch it handle your calls
Bring the three calls that waste the most of your team’s day. We run them live, in your sector’s language, and tell you honestly which ones we would not take. One short form to book.
Book a demoNo card, no sales sequence, one human reply.
Do all three, in that order, and it takes a little over half an hour in total. We would rather you tested the product than read our claims about it.
- DCB0129 safety case
- UK or EU processing region
- No minimum term
Let AI answer the phone, so your team can answer the person in front of them.
Tell us your phone system and your diary. Thirty minutes later you will know exactly how it connects and what changes on your side, which is usually nothing.
Free proof of concept on one call type, no cost and no obligation.
HEAR IT FIRST
Call +44 20 3747 7785 and put Prime Assist through its paces before you book anything.