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 7 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 7 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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