A Business Number Without a Second Phone: Separate Work and Personal

You don't need a second phone or a second SIM card to have your own business number. A virtual phone number forwards business calls to your existing smartphone. Clients only ever see the business number, your personal number stays personal.

It sounds technical, but it's set up in a few minutes. Why it's worth doing usually only becomes clear once it's already too late.

The problem: your personal number spreads faster than you'd think

At the start of self-employment, it's completely normal: you have a phone, a number, and it ends up on your website, in your email signature, on your first invoice. It happens fast.

The trouble is, you can never really pull that number back. It sits in old PDFs, in clients' CRM systems, in directories that copied it from somewhere. If you later want to protect your evenings and vacations, you'd have to change your actual personal number, and notify every friend, family member, and doctor's office along with it.

Example: the UX designer and the call at the beach

Picture a freelance UX designer based in Munich. Three years self-employed, well-booked, clients ranging from startups to mid-sized companies. Her mobile number had been public from day one.

Then came her first real vacation in a long time: two weeks in Sardinia. On day three, beach chair, book, espresso, her phone rang. A former client she hadn't worked with in a year wanted to "just quickly" know where an old Figma file was. Day five, another one. By day eight, she'd put the phone in the safe, and missed her sister's messages along with it.

After the trip, she changed three things:

1. A Munich business number, forwarded to her phone. It's now on her website, invoices, and signature.
2. Clear availability. Outside her working hours, voicemail picks up, and the message lands in her inbox as an email.
3. A business address instead of her home address on her Impressum. More on that below.

She kept her personal number. Only people who know her privately have it. On her next vacation, she just set the forwarding to "voicemail only" for two weeks.

How a business number on your own phone actually works

Here's what happens technically: the business number sits with a provider like Clevver in the cloud. When someone calls, the call gets forwarded to your phone. You talk normally, no app, no headset, no new device.

Setup takes three steps:

1. Pick a number: country, and area code where available.
2. Verify your identity. Phone numbers are regulated, so an ID is required, and depending on the country, proof of address too.
3. Set your forwarding destination: enter your mobile number, done.

Once verified, a number is typically active at Clevver within 24 to 48 hours.

Second phone, dual SIM, or a virtual number?

| | Second phone | Dual SIM | Virtual number | |---|---|---|---| | Extra device | Yes | No | No | | A second phone contract | Yes | Yes | No | | Locally-numbered abroad too | No | No | Yes, numbers from many countries | | Voicemail by email | Rarely | Rarely | Yes | | Cancellation | Often 24 months | Often 24 months | Monthly at Clevver (14 days' notice) |

Dual SIM is a good fit if you want two mobile contracts anyway. If it's mainly about separating work from personal life, a virtual number is usually the leaner option.

Don't forget: the address is the other leak

Many self-employed people only think of the phone when it comes to privacy. The other, often bigger leak is the address on their Impressum.

Anyone running a website generally has to list an address where they're reachable and mail can be delivered. For many freelancers, that's their home address, visible to anyone who loads the site.

A business address from Clevver solves that: you use an address in one of 33 cities, say Munich or Berlin, for your Impressum, invoices, and business mail. Whether such an address is sufficient for your specific case depends, among other things, on mail actually being reliably delivered there, more on that in What is a serviceable address? If in doubt, it's worth a quick check with your accountant or a lawyer.

To make sure mail doesn't just sit there unread, a digital mailbox rounds it out. Letters get accepted, scanned, and made available in the app. The designer from our example now reads her business mail on her phone, even while in Sardinia. If she feels like it.

FAQ

Can the caller tell their call is being forwarded? No. The caller dials the business number and hears a normal ring. The forwarding happens in the background.

Can I tell whether a call is business or personal? Yes. The easiest way is to save the business number as a contact, then incoming calls show you immediately which number was dialed. Details depend on your phone and settings.

Can I turn the business number off after hours? You can change the forwarding destination online, for example to another number, or so callers get sent to voicemail. You receive messages by email.

What does a business number cost? It depends on the country. A US number at Clevver, for example, starts at €1.99 a month with no setup fee. Current prices for every country are on the phone numbers page. Still have questions? → Contact us