When does the UK PSTN switch off?

BT Openreach is retiring the UK PSTN (WLR 2) on 31 January 2027. Every UK business landline must move to a digital service such as VoIP or full-fibre voice before that date.

What is the cheapest UK business VoIP?

Silux Call offers a free seat tier (1 user, 1 UK DDI, 30 minutes/month) and Pay-as-you-go from £0/month + £0.02 per UK landline minute, with no contract. Paid plans start at £6.95/user/month and come with a 30-day free trial.

Does Silux Call have a free trial, and do I need a credit card?

Yes. Every paid plan comes with a 30-day free trial and no credit card is required to start — most UK rivals offer only a 7 or 14-day trial, and several require a card up front. You can also stay on a permanently free seat with no card at all. Signing up takes about 60 seconds.

How quickly can I get a UK virtual landline number?

You can sign up in about 60 seconds and choose a UK virtual landline number (020, 0161, 03 or 0800) instantly — no engineer visit, no hardware and no contract. Existing numbers port across free on Plus and above, typically within 24 hours.

Can I keep my existing phone number?

Yes — Silux Call offers free UK number porting on Plus and above, typically completing in 24 hours. We support PAC and STAC porting workflows.

Does Silux Call work with Microsoft Teams?

Yes — Silux Call supports Microsoft Teams Direct Routing on the Pro tier, including a self-service onboarding wizard that issues the PowerShell snippet for your Teams admin.

Is Silux Call GDPR and HIPAA compliant?

Silux Call ships UK GDPR-compliant call recording with two-party consent flows, plus one-click HIPAA enrolment that locks 6-year retention, KMS-backed encryption, and PCI DTMF redaction. A one-click compliance report exports an auditor-ready PDF.

How does Silux Call block scam calls?

Silux Call screens every inbound call with an AI scam shield in under 0.5 seconds. Known HMRC, parcel, and account-spoof patterns are blocked before your phone rings — a feature no other UK business VoIP provider ships.

Free landline number UK: how a virtual landline replaces the copper line

A free landline number from Silux Call is a UK geographic number delivered over the internet — a virtual landline. It behaves like the landline you know, but needs no copper line, no line rental and no engineer visit, and it is free on the free seat.

Why the old landline is going away

BT Openreach retires the analogue PSTN and WLR2 on 31 January 2027. Many exchanges are already on stop-sell. A virtual landline is the standard replacement — see the PSTN switch-off guide.

What you get free

One UK geographic number (your local area code) at £0/month.
It rings on your existing phone, laptop or a desk phone.
Free voicemail-to-email and free call divert.
A free PSTN switch-off audit of your current lines.

Free landline vs forwarding-only services

Cheap "virtual landline" products only forward calls. Silux Call gives you a full hosted PBX — IVR, hunt groups, recording — on the same free number. Compare the approach on our provider comparison or grab the number now on the free landline number page.

Why the old landline is going away

What you get free

Free landline vs forwarding-only services

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