Free · no card to start

Free SIP account trial for UK businesses

Silux Call provides free SIP credentials on a trial so you can register a softphone, IP desk phone or 3CX/Asterisk PBX and test UK calling before committing to a SIP trunk plan.

Start free — no cardSee pricing

What you get free

Free SIP account for testing on the free seat
Register any standard SIP device or PBX
TLS + SRTP encryption by default
Test inbound and outbound UK calling
Upgrade to a full SIP trunk when ready

How the free offer works

The trial SIP account is free with a UK number and 30 outbound test minutes; production SIP trunking is quote-based by channel/usage.

Also searched as

UK buyers look for this under many names — Silux Call covers all of them: free sip account, free sip trial, free sip credentials, free sip trunk trial, free sip for 3cx trial, test sip account free.

FAQs — Free SIP account trial

Is free sip account trial really free?

Silux Call provides free SIP credentials on a trial so you can register a softphone, IP desk phone or 3CX/Asterisk PBX and test UK calling before committing to a SIP trunk plan. The trial SIP account is free with a UK number and 30 outbound test minutes; production SIP trunking is quote-based by channel/usage.

What do I get for free?

Free SIP account for testing on the free seat; Register any standard SIP device or PBX; TLS + SRTP encryption by default; Test inbound and outbound UK calling; Upgrade to a full SIP trunk when ready.

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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