Frequently asked questions


Onoff Business is part of Onoff Telecom. Onoff Telecom is a regulated telecommunications operator that provides phone services in the Cloud. Onoff combines the agility of mobile applications with the reliability of traditional telecom services.

Onoff Business is the service of Onoff dedicated to enterprises and organisations.

Our Onoff solution is more suited for personal use. You can take a second number with the Onoff application in case you are a freelancer and want to separate your professional communication inside your device.
Our Onoff Business solution allows companies and organisations to create professional accounts and manage their entire mobile phone fleet on an intuitive online platform. On this platform, the manager of the fleet can instantly add the employees and assign numbers and packages to them. He can apply numerous other features, for example reassign a mobile number in one click to another colleague in case of a vacation or an employee leaving.

You need more than one professional mobile number for your company or organisation? Onoff Business is the perfect solution for you! You can sign up here!

For companies and organisations, we simplify their entire mobile fleet management by taking away the bureaucracy and by substituting it by an intuitive online management platform. Employees will only need one device both for their professional and personal communication. Via the Onoff Business mobile application, they can use up to 5 additional numbers, assigned to them by the manager of the platform. These numbers work like a regular mobile number on a smartphone.

For detailed information on the features, please visit the Onoff Business Features page. The best way to discover the features is to sign up and test them out firsthand 🙂

Our Cloud service allows incredible additional features, such as using your phone number on any device - phone, tablet or even laptop. Or sharing a number between several employees. To find out more, please visit our Features page.

Yes, Onoff is an officially licensed telecommunications operator in 21 countries.

Cloud Numbers is the technology invented and patented by Onoff. The Cloud Numbers are identical to mobile numbers given by traditional phone operators, except for the technological aspect - Onoff has disconnected the physical SIM card from the mobile number to place the number into the cloud. That allows us to provide you with additional awesome features. Why don’t you come and discover them right away? Sign your company or organisation up here!

Just sign up on the following page: https://web.onoffbusiness.com/register
It only takes an instant!

You do not need to set up anything. After signing up, you directly have access to the management platform and you can immediately start adding users. Once the users have been added, you can assign mobile phone numbers to them. For the mobile numbers to become active you will need to have your Onoff Business account validated.

Onoff is a regulated telecommunications operator, and we comply with local regulations in the countries where we operate. This regulation requires us to collect and verify the identity of your company or organisation, and the identity of its legal representative. We promise that this is the only administrative pain point of our service 😉

You are required to provide the company registration document and the identity document of the legal representative of the company.

None! Signing up with Onoff Business as well as access to the management platform is free of charge. The subscription to mobile numbers or to international packages is charged.

Our prices are straightforward and transparent. You are in charge of each phone number that you have subscribed to. Please find more information on our Pricing page.

The price we show is without VAT. VAT might be added in some cases, for example if you are not a company.

The monthly payment date is set from the day your first number is activated. Currently, payments can only be made with credit cards, but we will soon add more payment methods.

With Onoff Business, you can subscribe to phone numbers from several countries. Currently, we propose numbers for Belgium, Canada, France, Israel, Poland, Sweden, UK and US. Please see the Pricing page to get detailed information on all of our plans.

Onoff Business wants to allow you to develop your business without any limitations! That’s why our French plan gives you unlimited calls and SMS and MMS to France and unlimited calls to Europe for only 9€ per month. Please check the details of the plan here.

Yes, of course! Onoff Business crosses borders with international packages and allows calling in the main regions of the world so that you can grow your business: Asia, Europe, Latin America and Middle East. Please find the details in the Onoff Business pricing conditions on our Pricing page.

If you are in a country that belongs to the European Union, no additional fees apply (provided that your personal plan is unlimited in the country of origin of your Onoff Business number, and in Europe). In case you are in a country outside the European Union, additional telecommunication fees will apply. If you are connected to an internet network, you can receive calls and SMS without an additional fee.

For detailed information, please see the Onoff Business pricing conditions on our Pricing page.

You will find the exhaustive list of countries in our pricing conditions. This list will evolve with time, as “Rome wasn’t built in a day” ;). Please visit our pricing conditions on our pricing page for detailed information.

The plan is the pricing system which covers phone numbers. A package is an option dedicated to international calls. You can choose to add one or several packages to a number.

It is very easy and quick to change a package with Onoff Business! In order to change a package of a user, you just need to go on this user’s profile on the management platform and delete this package. You can then add another package to the above-mentioned user. Any change has immediate effect.

Yes! Onoff Business does not charge you any fees for porting a number to your Business account. You need to take into account the conditions you have in place with your previous operator, as there could be costs related to the resiliation of the contract.

We want to offer you the best possible user experience. Our technology makes it possible to use your SIM card and make GSM calls inside the Onoff Business application. GSM calls provide a better quality than Voice over IP 🙂

You decide! You can add as many users as you need to your Onoff Business account.

Currently, you can choose between different available numbers. We are working on an even cooler feature to allow you to choose really outstanding numbers. Stay tuned!

Of course ;). Just select the user to whom you want to reassign the number and it’s done!

The Onoff Business management platform is the interface where you can manage the entire mobile fleet of the company and the numbers of all the users. The Onoff Business application is downloaded to the devices of all the users for them to be able to make calls and send SMS with their Onoff Business mobile numbers.
If you are both the manager of the console and the user of the mobile application, please consider that the login details for these two accesses are different. We suggest you keep these separate!

You can use the Onoff Business app on any iOS or Android mobile phone or tablet. Very soon, you will also be able to use the Onoff Business application on any desktop or laptop computer;)

No, you can use any plan you have! Our application uses the minutes and the data of your plan, thus we recommend you to have a large or unlimited plan.

The data of an Onoff Business phone number belongs to the company or organisation that purchased its subscription.

As a telecom operator, personal data is key in our functioning. We abide by all the rules defined by the regulation in Europe.

Please find our Terms of service here.
Didn’t find the answer you were looking for?
You can contact us directly via the management platform.

We are the only operator to provide mobile numbers’ integration into Teams. By using Onoff Business mobile numbers in Teams, you can make calls directly from the Teams mobile or desktop application without the need for a second phone.
For more information, go here

First, our team will need to configure your Teams account as well your Onoff Business account. You would need to possess licences (E1 or E3 with the addon system of communication / E5 / Business + Business voice) for each of your users to whom you would like to assign mobile numbers. The automatic synchronisation with Microsoft makes it possible for your employees that use Teams to be displayed directly on the Onoff Business management platform. As a next step, you would then add mobile numbers to them on the platform. The numbers would be available directly in the employees' Teams interface within 24 hours maximum.

They only need to connect to their Teams interface and their number will appear directly under the “Calls” section above the dial pad.

An Onoff Business number for Teams costs only 12€ per month excluding tax. Please find detailed information on our pricing page.

Currently it is only possible to make calls with the Onoff Business number in Teams. Soon, it will also be able to send SMS, we are working on this feature!
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