Frequently asked questions

BT Openreach is retiring the UK PSTN (and the WLR2 wholesale product) on 31 January 2027. Many exchanges are already on stop-sell, so new analogue lines cannot be ordered.

On 31 January 2027 any analogue line stops carrying calls. Phones, alarms, lifts and EPOS card terminals on that line stop working until they are migrated to an IP service such as VoIP.

Yes. UK number portability is a regulator-protected right. Silux Call ports UK landline (STAC) and mobile (PAC) numbers free on Plus and above, typically within 24 hours, with no loss of calls.

For a 1–10 user UK SMB, expect £6.95–£17.95 per user/month plus £0–£30 one-off porting. Ancillary devices (lifts, alarms, EPOS) are £50–£400 per endpoint.

Yes. Every Silux Call paid plan comes with a 30-day free trial and no credit card is required — one of the longest no-card trials in UK business VoIP, where 7 or 14-day (often card-required) trials are the norm and several providers offer no trial at all. You can also stay on a permanently free seat for as long as you like. Signing up takes about 60 seconds, with no sales call.

Silux Call has a permanently free seat (1 user, 1 UK DDI, 30 minutes/month) and Pay-as-you-go from £0/month plus £0.02 per UK landline minute, with no contract — among the cheapest entry points in UK business VoIP.

Free seat £0; Pay & Go £0 + £0.02/min UK landline; Lite £6.95/user/mo; Plus £11.95/user/mo; Pro £17.95/user/mo; AI receptionist add-on £199/mo flat per tenant; Enterprise from £39/user/mo. All GBP, no contract.

No. Every Silux Call plan is rolling and cancellable. The free seat and Pay-as-you-go need no card.

Yes. Silux Call is a UK-domestic service billed only in GBP, so there is no FX or rounding risk, unlike USD- or EUR-anchored global providers.

An AI receptionist is software that answers your business phone in your brand voice, understands the caller, and resolves the request, books an appointment, or routes to a human — 24/7.

Silux Call’s AI receptionist is £199/month flat per tenant with no per-call or per-user uplift — typically far cheaper than a £2,000/month outsourced answering service.

Silux Call screens every inbound call before your phone rings. Known HMRC, parcel and account-spoof patterns, anonymous numbers and your own block list are dropped, sent to voicemail or challenged — pre-ring scam screening no other UK business VoIP provider ships.

Yes. Recorded calls and voicemails are transcribed on the platform’s own speech engine with speaker separation, timestamps, full-text search and automatic PII redaction, so you can read and search calls instead of re-listening.

Yes. From your dashboard you can book a 30-minute support callback in a UK time slot between 9am and 5pm, Monday to Friday, and grab a same-day emergency slot for urgent, service-affecting issues. See /support/book.

Yes. When a call is out of scope the AI hands off to a human agent in under 3 seconds, and a per-DDI toggle lets you keep sensitive lines fully human.

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.

Yes, with a lawful basis (legitimate interest, contract, or consent) and a caller notification before recording starts, under UK GDPR and the Data Protection Act 2018. Silux Call ships a consent-prompt macro.

Yes. Ofcom requires VoIP providers to support 999/112. Silux Call routes emergency calls with your registered address and recommends battery/4G backup so it survives a power cut.

Yes when done properly. Silux Call encrypts signalling with TLS and media with SRTP on every call, supports SAML SSO and MFA, and offers KMS-backed recording encryption for regulated tenants.

No. Silux Call runs on iOS, Android, Windows, macOS, Linux and browser softphones, so existing computers and smartphones work immediately. IP desk phones are optional and auto-provisioned.

Yes — Silux Call supports Microsoft Teams Direct Routing on Pro, with a self-service wizard that issues the PowerShell snippet for your Teams admin, typically 60–80% cheaper per minute than Microsoft Calling Plan.

HubSpot, Salesforce, Pipedrive and Zoho for click-to-dial and screen-pop, plus Xero, QuickBooks, Sage, Google Workspace, Microsoft 365, Zapier and Slack.

A VoIP call needs connectivity, but Silux Call fails inbound calls over to 4G/mobile or an alternate site automatically during a broadband outage, so you stay reachable.

Yes. UK MSPs can rebrand the mobile and desktop softphone, bill end-customers via Stripe Connect, set per-tenant feature flags and earn 30–40% revenue share — including on Pro + AI.

Yes. The reseller portal provides multi-tenant provisioning, per-tenant SLA dashboards and affiliate attribution by signup link. Onboarding is typically three weeks.