Free · no card to start

Free second phone number for UK businesses

A free second phone number from Silux Call adds a separate UK business line to your existing smartphone at £0/month on the free seat — work calls stay separate from your personal number, on one device.

Start free — no cardSee pricing

What you get free

A second UK number on your existing phone, free
Separate work voicemail and business-hours rules
No second SIM or second handset needed
Free call forwarding and do-not-disturb scheduling
Caller sees your business number, not your mobile

How the free offer works

The free seat covers one second line with 30 outbound mins/month; upgrade only if you need more minutes, users or numbers.

Also searched as

UK buyers look for this under many names — Silux Call covers all of them: free second phone number, free second number for business, free second line, second phone number free uk, free 2nd number app, free business line on my phone.

FAQs — Free second phone number

Is free second phone number really free?

A free second phone number from Silux Call adds a separate UK business line to your existing smartphone at £0/month on the free seat — work calls stay separate from your personal number, on one device. The free seat covers one second line with 30 outbound mins/month; upgrade only if you need more minutes, users or numbers.

What do I get for free?

A second UK number on your existing phone, free; Separate work voicemail and business-hours rules; No second SIM or second handset needed; Free call forwarding and do-not-disturb scheduling; Caller sees your business number, not your mobile.

Do I need a credit card to start?

No. You can start the Silux Call free seat and free trials without a card. You only add payment details if you choose to upgrade to a paid plan.

Is it ready for the 2027 PSTN switch-off?

Yes. Silux Call runs entirely over IP, so it is unaffected by the 31 January 2027 PSTN switch-off — and every account includes a free WLR2 migration audit.

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