Free softphone app for UK businesses
The Silux Call softphone is a free app for iOS, Android, Windows, macOS, Linux and the browser that turns any device into a full business phone, free to download and free to use on the free trial.
What you get free
How the free offer works
The app is free; calls use your plan minutes. On the free trial that is one user with 30 outbound minutes for 14 days.
Also searched as
UK buyers look for this under many names — Silux Call covers all of them: free softphone, free softphone app, free voip app, free business phone app, free desktop softphone, free sip phone app.
FAQs — Free softphone app
Is free softphone app really free?
The Silux Call softphone is a free app for iOS, Android, Windows, macOS, Linux and the browser that turns any device into a full business phone, free to download and free to use on the free trial. The app is free; calls use your plan minutes. On the free trial that is one user with 30 outbound minutes for 14 days.
What do I get for free?
Free softphone for mobile, desktop and browser; Make/receive calls, hold, Transfer and Hold & Transfer, DTMF; Visual voicemail and call history; Presence and contacts; White-labelable for resellers.
Do I need a credit card to start?
No. You can start the Silux Call free trial 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.
Get a free number in your city
Free for your industry
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