Silux Call vs Spitfire: an honest UK comparison

Looking for a Spitfire alternative? Spitfire is a uK ITSP / hosted PBX. Spitfire published pricing, checked 26 September 2026: £9 per extension with a call bundle, plus £1 softphone (£10–£12 per user); minimum term. Silux Call has no long contract and puts 3 users and a UK landline in one price — Plus is £8.95 a month.

The short answer

Spitfire: per-extension billing on a minimum term. Silux Call has no contract, unlimited inbound calls on every plan, and every plan includes a UK number shared by your team, with an extension for every user.

Silux Call

From £4.75 a month · GBP · ex-VAT · no contract

  • 7-day free trial — 1 user, 1 UK number, 30 outbound minutes, no card
  • Entry £4.75 a month (1 user, 1 landline): 2,000 outbound UK minutes, unlimited inbound
  • Plus £8.95 a month (3 users, 1 landline): unlimited UK landline & mobile calls, call menu (IVR)
  • Growth £11.95 a month (6 users, 1 landline): call recording, queues, CRM, scam & spam shield
  • Pro £18.95 a month (10 users, 1 landline): 20 AI receptionist minutes, transcription, every call recorded
  • Extra landlines £5.99 a month · no long contract (30 days' notice) · free number porting on paid plans · extra numbers £5.99

Spitfire

UK ITSP / hosted PBX · checked 26 September 2026

Spitfire pricing
£9 per extension with a call bundle, plus £1 softphone (£10–£12 per user); minimum term
Spitfire free trial
Not published
Spitfire AI receptionist
Not published
Worth knowing about Spitfire
Per-extension billing on a minimum term

Source: https://www.spitfire.co.uk/voice/fireswitch-hosted-pbx-2-3/

Pricing side-by-side (GBP)

Silux CallSpitfire
Free trial7 days, no card (1 user, 1 number, 30 minutes)Spitfire: Not published
Entry plan£4.75 a month (Entry, 1 user, 2,000 outbound UK minutes)Spitfire: £10 (£9 extension + £1 softphone, with call bundle)
Unlimited UK landline & mobile£8.95 a month (Plus, 3 users + 1 landline)Spitfire: Not published
AI receptionist20 AI receptionist minutes a month included on Pro (£18.95 a month with 10 users and 1 landline); an £15 a month add-on on other plansSpitfire: Not published
ContractNone — rolling monthlyMinimum term; length not published

Spitfire figures from their own website, checked 26 September 2026; ex-VAT unless stated. Ours are read live from our price list. See the full band-by-band comparison →

Switching from Spitfire

  1. Choose a plan — no contract, so you can change it any time.
  2. Port — free UK number porting on every paid plan. Send a recent bill and a signed letter of authority.
  3. Set up — build your call menu, hunt groups and opening hours in the dashboard.
  4. Keep Spitfire running until the port completes, then cancel with them.
Choose Plus — £8.95 a monthStart 7-day free trial — no cardBook a migration call

FAQs — Silux Call vs Spitfire

Is Silux Call cheaper than Spitfire?

On Silux Call every plan includes a UK landline and its users, so a team pays one price, not one per person. Entry is £4.75 a month with 2,000 outbound UK minutes; Plus is £8.95 a month for 3 users with unlimited UK landline and mobile calls; Growth is £11.95 a month for 6 users, with call recording and queues; Pro is £18.95 a month for 10 users. Extra landlines £5.99 a month. All ex-VAT, no long contract. Spitfire, as published on 26 September 2026: £9 per extension with a call bundle, plus £1 softphone (£10–£12 per user); minimum term.

Can I move from Spitfire to Silux Call and keep my number?

Yes. Porting a UK number is free on every paid Silux plan — send a recent bill and a signed letter of authority. Your Spitfire line keeps working until the port completes.

How does Silux Call differ from Spitfire?

Spitfire: per-extension billing on a minimum term. Silux Call has no long contract (30 days' notice), includes a UK landline and several users in one plan price, includes unlimited inbound calls on every plan, adds a scam & spam shield from Growth (£11.95) and 20 AI receptionist minutes a month included on Pro (£18.95 a month with 10 users and 1 landline); an £15 a month add-on on other plans.

Does Silux Call have a free trial?

Yes — 7 days, no card: one user, a UK number and 30 outbound minutes. Spitfire: no free trial published.

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