If your team uses personal mobile numbers for work, the business does not control the numbers your customers, suppliers and accounts are tied to — your employees do. When someone leaves, the number leaves with them, and so does the relationship, the message history and any account or 2FA linked to it. Company-owned lines fix this: the business owns each number, so it stays and can be reassigned.
The problem with personal numbers for work
It starts innocently. A salesperson gives a client their mobile. Someone signs up for a supplier portal with their own number. An account gets set up with 2FA pointing at a personal handset. None of it feels like a risk until the person hands in their notice.
- Customer relationships walk out the door. Clients have the leaver’s personal number saved. They keep texting it — and it now belongs to a competitor’s new hire, or nobody at all.
- OTPs and 2FA get stranded. Accounts verified against a personal number can lock the business out the moment that number is gone.
- No visibility or record. Work conversations live in personal phones you can’t see, back up, or hand over.
- Blurred lines for staff. People don’t want customers calling their personal number at the weekend — but they have no alternative.
What company ownership actually gives you
With an Enterprise eSIM, each team member gets a real UK mobile number the company owns, installed beside the SIM already in their phone (dual SIM). It is a real line on a real network — not a virtual or VoIP number — so it works with the native dialer, texts and OTPs. Because the company owns it, the number is an asset you control, not a personal possession you’re borrowing.
Continuity
When someone leaves, you keep the number. Customers who call or text it still reach your business, and any accounts or 2FA tied to it stay intact. You can reassign the line to the next person on the team — see how to offboard an employee’s work number.
Control
- Give a new starter a work number in minutes — give employees a work number.
- Point account signups, OTPs and 2FA at a line the business controls — business numbers for 2FA.
- Reassign or reclaim any number from the portal without touching the employee’s personal SIM.
- Keep work and personal separate on one phone, so staff aren’t handing out their private mobile.
Is it worth the cost?
At around £4.99 per line per month, a company-owned work number costs less than losing a single customer relationship or getting locked out of one account. It is live in minutes, with no shipping and no second phone. When you’re ready, get started. Enterprise eSIM is powered by eSIM Copilot and part of Mindszi.
Frequently asked questions
Who owns the number — the company or the employee?
The company. Each Enterprise eSIM line belongs to the business, so when someone leaves you keep the number and can reassign it to the next person.
What happens to customer contacts if a salesperson leaves?
If they used a company-owned work line, the number stays with you. Customers who call or text it keep reaching your business, and you assign the line to their replacement.
Does this replace the employee’s personal number?
No. The work line installs as a second line beside their personal SIM (dual SIM). Their personal number is untouched and stays private.
Can I move accounts and 2FA onto a company-owned number?
Yes. Because it is a real mobile number, it receives SMS OTPs and 2FA codes normally, so you can point account signups and verification at a line the business controls.
Give your team work numbers
Real UK numbers your company owns, on the phones they already carry. Live in minutes.