Four lines, and nothing else
Your invoice always reads the same way. None of these lines depends on how many people you equip.
| Cost line | When | What makes it vary |
|---|---|---|
| Setup | once, at the start | Building your installation: taking over your numbers, building the dial plans, registering the phones. |
| Usage | every month, on actual use | Your outbound minutes and their destinations. A call to a foreign mobile doesn't cost what a local call costs. |
| Capacity | every month, on what you reserve | The number of calls you need to handle at the same time. It's the sizing of your installation, not your headcount. |
| Numbers | every month, per unit | How many numbers you hold, and in which countries. A local Belgian number and a toll-free number aren't billed the same way. |
You don't pay per extension
Most telephony offers bill a subscription per user. Not here: what costs money is the traffic you generate and the capacity you reserve, not the number of people who pick up.
- One more colleague doesn't change your subscription
- A workshop phone used twice a month doesn't cost what a sales phone costs
- You size on your simultaneous calls, always far fewer than your extensions

Two numbers, and you already know a lot
If you already have an installation, your current carrier can give you your minutes per month and your main destinations. For capacity, count your calls at the same time during peak hours, not your headcount.
- A rough rule: an office SME often gets by with one simultaneous call for every four to six people
- A call centre, on the other hand, is closer to one to one
- If in doubt, give a rough order of magnitude, we'll refine it
A price that follows your activity, not your org chart.
On the same subject
Virtual phone system
A hosted business phone system, no cabinet in a closet: extensions, greeting, queues and numbers are set from a browser.
SIP trunk
A SIP trunk for the IPBX you already have: your numbers arrive on it, your outgoing calls go out through us, and your extensions don't move.
Virtual number
A virtual landline, mobile, national, shared-cost or toll-free number, in 100 countries. Order it online and choose where it rings.
How many simultaneous calls should you plan for
This is the number that determines the sizing of a phone system, and the one nobody knows. Here is how to estimate it without being off by a factor of two.
A priced quote on your volumes
Tell us your minutes, your simultaneous calls and the countries where you want numbers. We'll come back with an amount, within one business day.