Business Mobile Number

A business mobile number that answers itself

Clara gives you a dedicated business mobile number, a UK number your customers can call and text, with an AI receptionist built in. Every call is answered 24/7 in a natural voice, every caller's details are captured, and your personal number stays private. No second SIM, no new handset.

7 days free · From £39.99/month · Included on every plan

A second number is only half the job

Second-number apps solve one problem: keeping work and personal calls apart. But the number still rings, and you still can't answer it from a ladder, a job site, or the school run. Research by Invoca shows fewer than 3% of missed callers leave a voicemail; the rest call the next business on the list.

Clara's business mobile number comes with the receptionist included. When your new number rings and you can't pick up, an AI receptionist answers in a natural voice, asks the questions you'd ask, and texts you a summary. Separation and coverage, from one number.

How it works

1

Get your number

Sign up in the Clara app and you're assigned a dedicated business mobile number, a UK number your customers can call and text. Setup takes about 10 minutes.

2

Put it everywhere

Your website, ads, directories, your van, business cards. Customers get one professional number, and your personal number stays yours.

3

Clara answers it

Every call is answered 24/7 with your greeting. You get a written summary and can call or text back from the app, from the same number.

Who runs Clara as their business line

Sole traders

Your mobile number has been the business number for years, and it never switches off. A Clara line takes the work calls so evenings become yours again.

New businesses

Nothing printed anywhere yet. Start with a professional number that never misses a call, instead of putting your personal number on the internet forever.

Side businesses

A separate line for the weekend business, answered professionally while you're at the day job. Its calls, texts, and summaries stay in their own lane.

Already have an established business number? Keep it: forward it to Clara instead, or run both. See how Clara works for your line of work, or compare what answering options cost.

Business mobile numbers, answered

How do I get a business mobile number?

Download the Clara app and sign up. You're assigned a dedicated business mobile number automatically, a UK number your customers can call and text. There's no new SIM, no second handset, and no carrier contract: the number lives in the Clara app alongside your personal number.

What makes Clara different from other second number apps?

Other second-number apps give you the number, but you still have to answer it. Clara's number comes with an AI receptionist built in: it answers every call 24/7 in a natural voice, asks your questions, captures the caller's details, and texts you a summary. The number is the feature everywhere else; here it's the starting point.

Can I call and text from my Clara number?

Yes. You can text with customers from your Clara number in the app, Clara can send automatic follow-up texts after calls, and you can return calls through the app so your personal number stays private.

Do I need a second phone or SIM card?

No. Your Clara number works through the Clara app on the phone you already have (iOS and Android). Business calls and personal calls stay separate without carrying two handsets.

What happens to my number if I cancel?

If you cancel your subscription, we hold your Clara number for one week and then release it. If you've printed the number on your website or vehicle, contact support before cancelling so we can talk through your options.

I already have a business number. Can I still use Clara?

Yes, that's the other way to use Clara: keep your existing number and forward calls, so Clara answers when you can't pick up. Many businesses run both, forwarding their main line and advertising the Clara number for a specific campaign or service.

Is a business mobile number tax deductible for sole traders?

Business phone costs are generally an allowable expense for the self-employed in the UK, and a dedicated business line makes the business use easy to evidence compared with splitting one personal contract. Check the GOV.UK guidance on allowable expenses or ask your accountant for your specific situation.

Reviewed by Adam Stevens, Co-founder, Clara · Last reviewed11 July 2026

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