// virtual number vs second sim
Virtual number vs second SIM: which suits your business?
// the short answer
Choose a second SIM or eSIM if one person needs a separate mobile number, direct SMS and data, and straightforward calls. Choose a virtual number if you want one public business line that can ring existing phones, follow business hours, reach more than one person and keep your personal number private. LineHQ routing and receptionist features vary by package.
A second SIM gives you a different mobile line; an eSIM can do the same without a physical card. A virtual number gives callers one business number and routes the call according to the rules you choose. The better fit depends on whether you need a separate mobile service or shared call handling.
Last reviewed October 2026
| Virtual number | Second SIM | |
|---|---|---|
| What you get | A public business number that routes incoming calls | A separate mobile line on your handset |
| Phone, SMS & data | Use the phone you already have; not a second mobile-data plan | A physical SIM or eSIM in a compatible handset, with its own mobile tariff |
| Number choices | Local, 03, 0800 or 07 business number | Usually another mobile number |
| Business hours / routing | Time-based forwarding and call-handling rules | A standard SIM rings its own line; it does not add shared routing by itself |
| Voicemail & recording | Voicemail-to-email and consent-backed call recording | Carrier voicemail; shared business voicemail and recording need separate tools |
| More than one answerer | Eligible packages can ring several people sequentially or together | A standard SIM is tied to its handset; shared answering needs another setup |
| Keeps personal number private | Yes, callers only see the business number | Yes, but you manage a second mobile line |
| Starting cost | £4.99/mo for number rental and voicemail; PAYG forwarding is separate | Your SIM/eSIM tariff, plus any handset or data cost |
Frequently asked questions
Is a virtual number better than a second SIM for business?
It depends on the job. A second SIM or eSIM suits one person who wants a separate mobile number, SMS and data. A virtual number suits a business that wants one public number, a private personal mobile, configurable call handling and the option for more than one person to answer.
Can I use an eSIM instead of a second physical SIM?
Yes, if your handset and mobile provider support eSIM. It is still a separate mobile line and tariff, just without a physical card. It is a good fit when you need mobile data and SMS for one person; it does not by itself create shared business-hour routing or a team voicemail setup.
Can a virtual number keep my personal number private?
Yes. Customers only ever see and dial your virtual number; it forwards to your personal mobile in the background, so your private number is never handed out.
Do I need a special phone for a virtual number?
No. A virtual number works with the phone you already have. Calls simply forward to it. There is no dual-SIM requirement and no second handset to carry.
What can a virtual number do that a second SIM cannot do on its own?
A virtual number can apply business-hour rules, ring several people in order or together, send voicemails to email and provide consent-backed call recording. LineHQ virtual receptionist features are available on eligible Reception and Scale packages. A standard second SIM can make and receive calls, but needs separate services to add this shared call handling.
What does a LineHQ virtual number cost compared with a second SIM?
LineHQ starts at £4.99 a month for number rental and voicemail allowance, with Pay As You Go forwarding charged separately at 5p a minute to UK landlines and 7p a minute to standard UK mobiles. Compare that with the total cost of a second SIM or eSIM tariff, any handset or data cost, and any separate tools you would need for shared call handling.
Try LineHQ
A UK number with recording, voicemail-to-email and a receptionist, from £4.99/mo — Pay As You Go mobile forwarding at 7p/min. No contract, cancel anytime.