Choose the ideal fixed line for your business

Phone line

The simple and high quality phone line, ideal for independents!

17.76 /month (excl. VAT)
Choose your tariff plan…

And call unlimited to all fixed lines and benefit from a big chunk of national and/or international calling minutes. You pay a fixed amount per month, so no unpleasant surprises on your bill.

Unlimited Calls National/International is even cheaper in a Pack:

10/month in the new Packs Bizz All-in and included for free in the Packs with Bizz Call Connect and Bizz Mobile 12 GB.

Bizz IP Telephony Multi

The professional phone line for small enterprises connected to your IP-phone exchange.

39.70/month (excl. VAT)
Bizz IP Telephony is the “Voice over IP” communication solution for all your fixed line calls.

Professional line (ISDN)

The digital fixed line for small enterprises connected to your phone exchange.

39.70/month (excl. VAT)
For a professional management of your calls opt for this type of line.

Bizz Call Connect

Manage all your fixed and mobile calls together with your team.

20/month/user (in a Bizz Pack)
Bizz Call Connect is a flexible and advantageous solution in the cloud to manage all the calls of your clients in a professional manner on any type of device (fixed line and smartphone).
Ready for the communication of the future?

On 1 January 2017, we will stop commercialising the ISDN digital line, and go for IP!

Is your company ready for the communication of the future? After years of loyal service, ISDN will be discontinued on 1/1/2017. IP communication will become the communication form of the future, offering numerous advantages and new possibilities.

And don't worry about your existing ISDN lines: they will continue to function and we will still provide the technical service for them until the gradual and complete migration to the world of IP. Proximus will of course be at your side to guide you during this migration!

Even more advantageous in a Pack!

Interested in getting even more advantages out of your fixed line?

Choose for a Pack Bizz All-in and call unlimited to all mobile and fix numbers in Belgium.

Fixed line in a Bizz All-in Pack

Maximize your fixed line

With our extensive offer of free and paying options

Paying services

Optimize your fixed line to it’s full potential with our paying services : unlimited calls, more minutes to international lines, call forwarding, …

Our paying services

Free services

Discover a wide range of free services included in your subscription: three-party conference, automatic redial, PhoneMail, …

Useful and free

Get inspired



Offer without fixed-term contract. Customers can cease having the product at any moment and without any penalty fees, provided they give 1 month notification.

Conditions Professional line (ISDN)
Conditions Bizz IP Telephony Multi
Phone line installation charge

Installation lead time

Besides a junction box and a terminal (telephone, fax, etc.), the installation only requires a connection to the Proximus network.
However, you do need the following Proximus infrastructure:

  • a lead-in cable that enters your building from the public domain
  • a connection point that terminates the Proximus infrastructure inside your building

If you do not have the appropriate infrastructure, please call our Customer Service in order to take the preliminary steps.

Your appointment will be confirmed by SMS and by telephone

We work hard to continuously improve our service. To make sure that our appointments for installations and repairs can proceed smoothly, all appointments are confirmed by SMS. Moreover, our technician will call you about 30 minutes before arriving at your premises.

The installation charges of €114.05 include:

  • Activation charge: €48.76
  • Fixed call-out charge: €40.50
  • Installation of junction box: €24.79