Account & billing

Upgrading your plan, adding users and adding numbers

Watch: Which plan is right for you? · 3 min · steps and transcript · all video guides

When to upgrade versus buying one add-on, how plan pricing works, how to add extra landlines, and what changes the moment you upgrade.

Which plans include it

Included on every plan, including the Free Trial.

Free Trial
Included
Entry
Included
Plus
Included
Growth
Included
Pro
Included
Enterprise
Included

What it means

Every Silux Call plan includes 1 UK landline and a set number of users (Entry 1, Plus 3, Growth 6, Pro 10). Each plan unlocks more of the phone system; extra landlines are £5.99 a month and add-ons let you pick single features without upgrading.

What it does

  • Entry: a business number for one person, with transfer, hold, holiday mode, hunt groups and porting, plus a greeting menu, hold music and on-demand recording.
  • Plus: a phone system — greeting menus, greetings studio, hold music, opening hours, find me / follow me, on-demand recording, plus call queues, full call recording and automatic recording of every call.
  • Growth (6 users, 1 landline): team tools — extensions, queues, conferencing, call park, paging, monitoring, whisper, full recording, CRM, Scam Shield.
  • Pro (10 users, 1 landline): Smart Receptionist, transcription, card payments over the phone, automatic recording of every call.
  • Enterprise (25+ users, quoted): everything plus SMS notifications and the WhatsApp Business inbox.

Every part of the page

Billing → Upgrade Your Plan
Choose a new plan and confirm.
Features & add-ons
Buy one feature at a time.
Buy a Number
Add extra numbers.

How to use it

Upgrade

  1. Open Billing.
  2. Press Upgrade on the plan you want and confirm.
  3. New features appear in your menu as soon as payment succeeds.

Add a user

  1. Contact support or book a support call to change your user count.
  2. Then add the person on Users and give them an extension.

Add a number

  1. Open Buy a Number, search, and press Buy.
  2. Check out with your login email so it is added to this account.

Examples

Add-on or upgrade?

On Entry and you only want opening-hours routing? Buy Business-hours routing as an add-on. Want opening hours, call queues, the greetings studio and full call recording? Plus is usually cheaper than buying them one by one.

Taking on staff

Your plan includes its users; if you need another number, add an extra landline for £5.99 a month.

  • ★Need 3 or more add-ons? Compare with the next plan — it is often cheaper.
  • ★Moving from Plus to Growth is the step that turns a business number into a team phone system.

Questions

Do I lose add-ons when I upgrade?+

No. Add-ons you pay for separately are kept on any plan.

How is the month I change plan charged?+

Pro rata: your old plan for the days you used it and your new plan for the days left in the billing month. You are never charged for two plans at once, and from the next month you pay the new plan price.

Is there a minimum number of users?+

No. Every self-serve plan starts at 1 landline and its included users, and you can add landlines as you grow. Enterprise is for teams of 25 or more.

Does every user get a number?+

Each plan includes 1 UK landline that its users share. Add more landlines for £5.99 a month each.

All help topics

Getting started

Phone numbers

How calls are answered

Voicemail & greetings

Making & taking calls

Your team

Desk phones

Recording & reports

SMS & WhatsApp

Smart Voice

Safety & compliance

Account & billing

Developer API

Reseller portal

Plan guides